How to Choose a Mattress: the ultimate guide to buying a mattress

Updated October 2026. In October 2024, the Competition and Markets Authority took formal enforcement action against a major bed-in-a-box brand for exactly these tactics. The only way to cut through all of it is to understand what you are actually buying. This guide gives you that understanding, drawing on 25 years of manufacturing experience making handmade pocket-sprung mattresses here in the UK.

Unlike affiliate-funded mattress buying guides, we manufacture and sell our own mattresses. We do not earn affiliate commissions from the products discussed here, and our aim is to explain the specifications that matter, whether or not you choose to buy from us.

How to choose a mattress

This guide will show you everything you need to know before buying a mattress. If you’re ready to explore your options, you can browse our mattress collection or use our Mattress Finder to narrow down the models that may suit your needs.

Mattress buying checklist: six things to consider

Before getting into the detail, use these six questions to narrow down your choice:

1. What is your body weight? This helps determine the appropriate spring tension.
2. How do you sleep? Your sleeping position can influence the upholstery comfort you need.
3. What mattress type do you prefer? Consider pocket springs, foam, latex and hybrid constructions.
4. Are you buying for one person or two? Couples with different body weights may benefit from split tensions or zip-and-link mattresses.
5. What is your budget? Compare the full specification, including spring construction, upholstery and whether the mattress is double-sided.
6. What size mattress and bed base do you have? Make sure your chosen mattress is compatible with both.

You don’t need to understand every technical detail before choosing. The sections below explain each consideration, with links to our more detailed guides where appropriate.

John Ryan mattresses: a quick starting point

If you already have an idea of your budget and preferred construction, these three mattresses provide a useful starting point. You can compare the full specifications before deciding which is most suitable.

Mattress	Why consider it?
Origins Pocket 1500	An accessible introduction to pocket-sprung support.
Origins Natural Comfort	An option for those looking to introduce natural-fibre upholstery.
Artisan Naturals	A premium handmade mattress with natural-fibre upholstery and calico pocket springs.

For more options, explore our Origins range or natural-fibre pocket sprung mattresses. The full product comparison appears later in this guide.

Jump to a section

Choosing your mattress

1. What type of mattress should you choose?
2. How to choose the right firmness
3. Mattress choice by sleeping position
4. How much should you spend?

Understanding mattress quality

5. Understanding pocket springs
6. Know what is inside your mattress: GSM explained
7. Natural vs synthetic upholstery
8. Construction quality: what to look for

Your individual requirements

9. Choosing a mattress for health conditions
10. Couples and different sleep needs
11. UK mattress sizes: complete guide

Before and after buying

12. Bed-in-a-box vs handmade: an honest comparison
13. Bed base compatibility
14. Mattress care and when to replace
15. Your UK consumer rights
16. How to compare mattresses side by side
17. Frequently asked questions

1. What type of mattress should you choose?

Before thinking about price, brand, or firmness, you need to understand what you are actually choosing between. There are five main mattress types sold in the UK, and they differ significantly in how they feel, how long they last, and what they are made from.

Pocket spring mattresses

A pocket-sprung mattress contains individual springs, each enclosed in its own fabric pocket. Because every spring moves independently, the mattress responds to your body shape rather than pushing back against it as a single unit.

Pocket springs are a well-established support system, particularly in traditionally constructed mattresses. Their performance and durability depend on the spring design, wire specification, encasing and upholstery rather than spring count alone.

The quality of the spring unit itself, covering wire gauge, coil count, and the presence or absence of a calico encasing, is one of the important factors separating different pocket-sprung mattresses. We cover this in full in section five.

If you’re looking for a starting point, our Origins Pocket 1500 provides an introduction to pocket-sprung support, while the Artisan Naturals offers a more traditional natural-fibre construction.

You can also read our detailed Pocket Spring Mattress Guide.

Open-coil and Bonnell spring mattresses

Open-coil mattresses use interconnected springs that respond together when pressure is applied. They are commonly found in more affordable mattress ranges. Because the springs are linked together, movement on one side of the mattress can be felt across more of the sleeping surface, which may be less suitable for couples.

The support and durability of an open-coil mattress depend on its construction and upholstery. For an occasionally used guest bedroom, an affordable open-coil model may be adequate. However, for a mattress used every night, we would generally recommend comparing pocket-sprung alternatives before making a decision.

Memory foam mattresses

Memory foam responds to body heat and pressure, slowly moulding to your shape and returning to its original form when you move. Many sleepers find the initial feel comfortable.

However, memory foam can retain heat, although performance varies according to the foam formulation, cover and ventilation design. Manufacturers address this with varying degrees of success through cooling gel layers and ventilation channels.

Memory foam can also feel less responsive when changing position, which some combination sleepers find restrictive. It is made from petroleum-derived polyurethane, and its durability and recyclability depend on the specific materials and construction used.

Rather than assuming that every foam mattress has the same lifespan, compare the density and specification of its comfort layers, alongside the manufacturer’s care and guarantee information.

Hybrid mattresses

A hybrid combines a pocket-spring support layer with foam, latex, or natural fibre comfort layers above it. The principle is sound: springs for support and durability, a softer layer for immediate pressure relief.

In practice, the quality of hybrid mattresses varies enormously depending on how substantial both layers actually are. Many mid-range models use minimal foam over a basic spring unit and may offer limited advantages over a well-specified traditional pocket-sprung mattress.

When evaluating a hybrid, ask for the depth and specifications of each layer rather than accepting marketing descriptions such as “responsive foam” or “luxury comfort layer”.

Latex mattresses

Natural latex is derived from the sap of the rubber tree. It has a responsive, slightly springy feel quite different from memory foam, pushing back against your weight rather than slowly conforming to it.

Latex can be a durable and responsive comfort material, although breathability and suitability for people with allergies depend on the complete mattress construction and individual sensitivities.

The distinction between natural and synthetic latex matters considerably because synthetic or blended latex uses petrochemical substitutes and may have different performance characteristics.

If you are considering a latex mattress, look for Talalay- or Dunlop-processed natural latex, and confirm the genuine natural percentage.

Our Artisan Latex uses 100% natural Talalay latex as its comfort layer.

If you prefer the responsive feel of latex alongside pocket-sprung support, you can explore the Artisan Latex mattress.

Open-coil vs pocket spring: a quick comparison

Feature	Open Coil	Pocket Spring
Motion transfer	Higher (interconnected springs)	Generally lower (springs respond independently)
Body contouring	Less individual response	More individual response
Typical lifespan	Depends on construction and materials	Depends on construction and materials
Price range	Commonly found in budget ranges	Available across different price points
Suitability for couples	May transfer more movement	Often suitable where movement isolation matters

For a much deeper look at mattress types, including the differences between individual spring systems, see our Pocket Spring Mattress Guide and wider mattress advice resources.

2. How to choose the right firmness

Firmness is probably the area where most people make an expensive mistake. The single most important thing to understand is this: spring tension and comfort feel are not the same thing, and confusing the two is a common reason for choosing an unsuitable mattress.

Spring tension refers to the resistance of the springs themselves, specifically how hard or easy they are to compress. It is primarily determined by the gauge, or thickness, of the wire used.

Spring design also influences the tension, including coil diameter and number of turns.

Comfort feel is determined by the upholstery layers above the springs: the depth, density, and composition of the materials that cushion you before your weight ever reaches the springs.

A mattress can have very firm springs but feel soft because of deep natural fibre layers on top. It can equally have soft springs but feel relatively firm because the upholstery layers are thin.

Body weight is your primary guide for spring tension

The following table gives a general guide. These are the wire diameters used in the existing spring-tension guidance; suitability should be confirmed for the individual mattress model.

Spring Tension	Wire Diameter	Recommended Body Weight
Soft	1.2mm	Bespoke (please call us)
Medium	1.4mm	Up to 16 stone
Firm	1.6mm	16 stone and above
Extra Firm	1.9mm	20 stone and above

If you are lighter than 16 stone and sleeping on springs that are too firm, your weight may not be sufficient to compress them comfortably. You may feel excessive pressure at the hips and shoulders.

Heavier sleepers on springs that are too soft may compress the support unit further than intended, causing the unsupported feeling often blamed on the mattress being worn out, when in reality the spring tension may not have been suitable for the person’s weight from the beginning.

If you’re unsure which tension is appropriate, our team can help you compare the available options before choosing a mattress.

Comfort firmness: a consumer-friendly scale

Most retailers use a 1-to-5 scale (extra-soft through extra-firm). For practical purposes, the feel of a mattress falls across three broad categories:

Feel	What it means	Typically suits
Soft	Deep, cushioning feel with significant sink	Side sleepers, lighter builds, those who prefer a cradling sensation
Medium	Balanced support with moderate cushioning	Many sleepers, combination sleepers, couples with different needs
Firm	Minimal give, flatter sleeping surface	Those who prefer a firmer feel, provided the spring tension and upholstery suit their body weight

Remember that “firm” as a feel and “firm” as a spring tension are separate specifications. When speaking to any retailer, always clarify which one they mean.

3. Mattress choice by sleeping position

Your sleeping position affects which parts of your body are under the most pressure during the night, and therefore what the mattress needs to do for you. This is a significant factor that most people never consider when buying.

Side sleepers

Side sleeping is a common sleeping position. When you lie on your side, your hips and shoulders are the widest points and press into the mattress surface.

If the mattress is too firm for your weight, these pressure points cannot sink sufficiently, and the spine may not remain comfortably aligned.

Side sleepers generally benefit from a mattress with softer upholstery layers to allow proper shoulder and hip articulation.

The spring tension should still be appropriate for your body weight; a lightweight side sleeper may need a softer spring tension, while a heavier side sleeper may need firm springs but will still benefit from a softer top surface.

For more detailed guidance, read our side sleeper mattress advice or compare mattresses for side sleepers.

Back sleepers

Back sleeping requires the mattress to support the natural lumbar curve without allowing the lower back to either sink too deeply or remain unsupported.

A medium-to-firm surface is often preferred, although the right level of support depends on body weight and individual comfort.

A mattress that is too soft may allow the pelvis to sink excessively, while one that is too firm may create uncomfortable pressure points.

Back sleepers often do well with a suitable spring tension combined with a supportive upholstery layer.

Stomach sleepers

Stomach sleeping can place additional strain on the lower back and neck, particularly if the mattress allows the pelvis to sink excessively.

If you sleep this way, a firmer mattress may help limit excessive sinking, provided the spring tension is appropriate for your weight.

Stomach sleepers should consider a supportive mattress with upholstery that does not allow excessive sinkage, rather than automatically choosing the firmest available spring tension.

Combination sleepers

If you move between positions during the night, your priority is a mattress that transitions comfortably and does not create resistance when you shift position.

Memory foam can feel restrictive for some combination sleepers because of its slower response. Pocket-spring mattresses with natural fibre upholstery layers tend to respond quickly and accommodate movement well.

A medium tension is usually a useful starting point for some combination sleepers, provided it matches their body weight, with upholstery matched to their comfort preferences.

For a broader comparison, see our guide to choosing a mattress for different sleeping positions.

4. How much should you spend on a mattress?

Setting your budget for a new mattress is absolutely key to your purchase decision. However, you cannot feasibly do this if you do not know what your money actually gets you.

You should aim to buy the best bed you can afford. Given that you spend roughly eight hours a night in your bed, it makes sense to consider long-term comfort, construction and value rather than purchase price alone.

The table below provides an indicative breakdown of what you may find across different UK mattress price points. Figures reflect double-mattress pricing; prices vary between retailers, mattress sizes and specifications.

How much to spend on a double mattress?	What can I expect for my money?
Under £500	Typically budget foam or open-coil mattresses, although some entry-level pocket-sprung options may be available.
£500	Entry-level spunbond springs with some form of synthetic upholstery. Often one-sided mattresses.
£750	The beginnings of a basic pocket spring unit with 800–1000 count. Check the upholstery specification and whether the mattress is double-sided.
£1000	Should get you away from most low ranges and into the mid-range pocket spring models.
£1250	Should get you a decent pocket sprung mattress with some natural fibre content.
£1500	Should get you many manufacturers’ mid-range models with natural fibres.
£1500–£2000	Should get you a handmade, primarily natural fibre quality mattress.
£2000+	You should expect a detailed specification, substantial upholstery and traditional construction features where applicable.
£5000+	A bespoke handmade sleep system, high-end spring units and premium upholstery materials.

These are general expectations rather than guaranteed specifications for every mattress at each price point.

Most people buying in the £500 to £800 range should consider whether spending more upfront would provide a meaningful improvement in construction, comfort or expected longevity.

A more expensive mattress is not automatically better value. Compare the materials, construction, suitability and guarantee before deciding whether the additional cost is justified.

Be especially wary of perpetual discounts and inflated reference prices. The CMA’s 2024 enforcement action against a major online mattress brand concerned potentially misleading discounting practices. If a mattress is always on sale, it is worth investigating its usual selling price rather than relying on the advertised saving.

If you’re beginning with a defined budget, the Origins Pocket 1500 provides a useful starting point. For an introduction to natural-fibre upholstery, consider the Origins Natural Comfort.

For those considering a more premium construction, the Artisan Naturals is another option worth comparing.

5. Understanding pocket springs

It is essential to know what spring type and tension you require for your body weight. Many people confuse spring tension with mattress feel, which makes them more likely to buy the wrong spring tension and end up with an uncomfortable mattress.

Pocket springs are one of the main support systems used in quality mattresses, but the spring specification needs to be considered alongside the upholstery and overall construction.

Spring count

Spring count is the most heavily marketed spring specification and also one of the least meaningful in isolation.

The minimum number of pocket springs you should look for in a king-size mattress is around 1,000.

This is a useful starting point rather than a strict threshold for mattress quality. The size and construction of the spring unit, wire specification and upholstery all influence the support provided.

Very high spring counts may be achieved through smaller springs or additional micro-spring layers. These are not necessarily poor constructions, but the headline number does not establish whether the mattress is more suitable or supportive.

A well-specified mattress with 1,600 calico-encased pocket springs may provide better value than a model advertising a much higher spring count if the latter has less suitable upholstery or spring tension.

Spring Tension	Wire diameter (Gauge)	Weight Range
Soft	1.2mm	Bespoke Tension (Please Call)
Medium	1.4mm	Upto 16 stone
Firm	1.6mm	16 stone plus
Extra Firm / Orthopaedic	1.9mm	20 stone plus

Wire gauge and coil height

Wire gauge and wire diameter are closely related ways of describing spring-wire thickness. A 1.4mm wire is used in our medium-tension spring specification, while a 1.6mm wire is used for firm tensions.

Coil height affects the depth of compression available before the spring bottoms out; the spring’s response also depends on its diameter, number of turns and overall design.

Calico-encased pocket springs are a traditional construction used in premium mattresses, allowing individual springs to respond independently.

Springs are also one of the real quality differences you can use to separate one manufacturer from another.

For the detailed explanation of spring counts, wire diameters, spring tensions and construction methods, read our Pocket Spring Mattress Guide.

6. Know what is inside your mattress: GSM explained

Next up is spotting decent upholstery in a mattress. This is done by knowing the GSM (grams per square metre) of upholstery, which is one of the most useful specifications to consider when evaluating the fillings used in a mattress.

Take one mattress that lists its contents as containing a wool layer. If you do not know how much is inside, you cannot possibly know whether it represents good value. It may be 200gsm or 2,000gsm of wool and the difference is vast.

GSM tells you the weight of upholstery per square metre, but it should always be considered alongside the type and arrangement of the materials used.

As a general guide, mattresses with very low upholstery quantities may offer less substantial cushioning than those with deeper, well-specified comfort layers. However, there is no single GSM figure that guarantees mattress quality or suitability.

Quality mid-range mattresses typically contain substantial upholstery layers, while some premium handmade mattresses use several thousand GSM of natural and blended fibres.

At John Ryan By Design, we publish upholstery specifications to help customers understand what is inside their mattress and make more meaningful comparisons.

For a full explanation of how to interpret these figures, see our specialist GSM guidance. You can also compare upholstery specifications across our mattress collection.

7. Natural vs synthetic upholstery

There are only two parts that go into making a mattress: the springs and the upholstery. Once you grasp the basics of upholstery, your job is halfway done.

Not all mattress upholstery is equal, and it’s important to understand whether a mattress uses natural fibres, synthetic materials or a blend of both.

You have two choices with mattress upholstery. The first is synthetic entry-level materials like foam, polyester, and white fibres. The second is natural fibres such as horsetail, wool, cotton and bamboo.

Wherever possible, you should opt for natural fibres, as they are often chosen for their breathability, moisture management and resilience.

However, performance varies according to the quality, quantity and construction of the materials. Natural-fibre content should be assessed by its actual specification rather than assumed from a product name or marketing description.

The fibres and upholstery within a mattress dictate the overall comfort feel of the mattress. This is where most people mistake the spring tension for comfort.

You need to know exactly which upholstery layers are present and in which order they appear to understand how a mattress will feel and respond to your body.

Natural fibre properties at a glance

Natural Fibre	Key Properties
Wool	Temperature regulating, moisture wicking, resilient, naturally fire resistant
Cotton	Breathable, soft hand feel, good moisture absorption
Horsehair / Horsetail	Resilient and durable, resists compression, encourages air circulation
Mohair	Soft, resilient, good moisture management
Cashmere	Soft, lightweight, temperature regulating
Alpaca	Soft, lightweight, thermal insulation and moisture management
Bamboo	Properties depend on whether the material is a natural bamboo fibre or a regenerated textile such as viscose
Natural Latex	Resilient, responsive, pressure relieving

Natural fibres can provide excellent resilience and comfort when used in appropriate quantities and combinations. However, the lifespan of any upholstery depends on the specific materials, their quality and the complete mattress construction.

For a more detailed breakdown of the different upholstery materials, refer to our specialist mattress upholstery guidance.

If you’re interested in mattresses with more substantial natural-fibre fillings, the Artisan Naturals and Artisan Bespoke 004 are two options worth comparing.

8. Construction quality: what to look for

The construction method used to assemble a mattress determines how long it will hold its shape and how comfortable it remains over its lifespan.

There are significant differences between handmade and machine-made mattresses that are worth understanding before you buy.

A handmade mattress can involve a substantial amount of skilled labour, including tufting, side stitching and upholstery assembly. Understanding these details helps you compare what different mattresses offer beyond their spring count and surface feel.

Two-sided vs one-sided mattresses

A two-sided mattress is one of the most underused quality indicators available to a UK mattress buyer, and one of the most consequential.

A two-sided mattress has upholstery on both sides and can be turned periodically, distributing wear across both sleeping surfaces.

This can help manage upholstery settlement over time, although the actual lifespan will depend on the mattress construction, materials and maintenance.

One-sided mattresses are not necessarily unsuitable, but they cannot be flipped. When comparing similar models, we generally favour a well-made double-sided construction because both surfaces can be used.

Every mattress we make at John Ryan is two-sided.

Hand tufting

Tufting is a high-quality sign that the fillings are securely held in place, helping to reduce movement and maintain the arrangement of the upholstery layers.

Traditional mattress tufting passes through the mattress to secure the upholstery and spring assembly. When comparing models, ask how the upholstery is held in place rather than assuming that every tufted or quilted mattress has the same construction quality.

Tufted damask covers are commonly associated with traditional handmade mattresses, while quilted covers are used across a wide range of mattress types and price points.

Hand side stitching and tape edge

Hand-stitched panels on the mattress side are a traditional feature of premium mattress construction, helping to secure the borders and support the mattress perimeter.

When you sit on the edge of a well-made mattress, it should not bulge excessively or feel unstable.

Hand side stitching and tape edging are useful construction details to look for, but the quality of the finished mattress also depends on the spring unit, upholstery and overall assembly.

Pillowtop mattresses can present additional considerations because the attached comfort layer may not be replaceable if it settles. However, their durability varies according to the materials and construction, so they should not automatically be considered inferior.

Mattresses with stitched handles are far easier to turn, and perimeter support is important for maintaining a stable sleeping surface.

Rather than judging construction quality by a single feature, look at the complete specification: spring type, upholstery layers, whether the mattress is double-sided, tufting, border construction and the manufacturer’s guarantee.

For examples of traditional mattress construction, explore the Artisan Naturals or Artisan Bespoke 004, or browse our wider mattress collection.

9. Choosing a mattress for health conditions

Health and lifestyle factors are frequently the most important considerations when choosing a mattress, yet most generic buying guides treat them as an afterthought. This section covers the most common scenarios.

Back pain

Back pain is one of the most common health-related concerns when choosing a mattress. The evidence base is more nuanced than most mattress marketing suggests.

A 2003 study in The Lancet found that medium-firm mattresses were associated with better outcomes for chronic low back pain than firm mattresses, contradicting the long-held view that firmer is always better.

The right mattress for back pain depends on the type of pain, the sufferer’s body weight, and their sleeping position.

For people experiencing non-specific lower back pain, a mattress that provides suitable support while allowing the shoulders and hips to rest comfortably may be beneficial. However, no particular mattress construction or spring tension can guarantee relief from back pain.

The appropriate spring tension should still be selected according to body weight, with upholstery chosen to provide the preferred comfort feel.

See our mattress advice and buying guides for more information. If you experience persistent or worsening back pain, seek advice from an appropriate healthcare professional.

Allergies and dust mites

Dust mites are present in virtually all domestic mattresses. It is not the mite itself but the proteins in its waste that trigger allergic responses.

Mattress materials, humidity, bedding and cleaning practices can all influence exposure to dust-mite allergens. Natural latex and wool are sometimes promoted for their resistance to dust mites, but neither material guarantees an allergen-free sleeping environment.

Mattresses labelled “hypoallergenic” should be assessed carefully, as the term alone does not establish that a product is suitable for every allergy sufferer.

A suitable mattress protector, regularly washed bedding and appropriate bedroom humidity are important considerations for anyone managing dust-mite allergies.

If you have a diagnosed latex or other material allergy, check the full mattress specification before purchasing.

Hot sleepers

Mattress materials heavily influence temperature regulation during sleep.

Memory foam and dense synthetic fillings can retain heat, although performance varies between different formulations and mattress constructions.

Natural fibres, particularly wool, cotton and horsehair, are valued for their breathability, moisture management and ability to help maintain a comfortable sleeping environment.

If you find yourself sleeping hot, consider the type and quantity of upholstery in your mattress rather than relying solely on claims about cooling technologies.

Wool, for example, can absorb and release moisture, while the structure of horsehair can encourage airflow through upholstery layers. However, the overall temperature regulation of a mattress also depends on its cover, construction, bedding and bedroom environment.

If natural-fibre upholstery is a priority, you can compare the Origins Natural Comfort and Artisan Naturals to understand the different constructions available.

Heavier sleepers

Heavier individuals exert more sustained pressure on a mattress, compressing the upholstery layers more deeply and cycling the springs through a greater range of motion.

The practical implications are straightforward: choose a higher spring tension (where appropriate for your body weight), prioritise resilient upholstery and strongly favour two-sided construction to distribute wear across both faces.

A mattress with suitable spring tension and substantial upholstery may provide more consistent support over time. However, the correct tension depends on the individual and should not be selected solely on the assumption that firmer is always better.

Our Artisan mattress collection includes models with different spring tensions and upholstery specifications. Our team can help you identify an appropriate option.

Joint pain and arthritis

Joint pain sufferers, including those with arthritis, osteoarthritis and fibromyalgia, typically benefit from a mattress that provides genuine pressure relief at joints while maintaining overall spinal alignment.

A mattress that is too firm may create uncomfortable pressure points at the hips, knees and shoulders.

Equally, a mattress that allows excessive sinking may make changing position more difficult for some sleepers.

The aim is to find a comfortable balance between pressure relief and suitable support. A mattress with an appropriate spring tension and resilient comfort layers may be worth considering, but individual preferences and symptoms vary.

If you have a diagnosed joint condition, consider discussing your mattress requirements with your healthcare professional alongside seeking advice on the available mattress specifications.

10. Couples and different sleep needs

Buying a mattress for two people adds complexity that single-sleeper guidance cannot address.

The most common scenarios are partners with significantly different body weights, partners who prefer different firmness levels, and partners where one is a lighter sleeper disturbed by the other’s movement.

Motion transfer

Pocket-spring mattresses, particularly those with individually encased springs, can provide good motion isolation because the springs respond independently to pressure.

For couples in which one partner is significantly disturbed by the other’s movement, a quality pocket-spring mattress is worth considering alongside other constructions designed to reduce motion transfer.

Memory foam can also provide effective motion isolation, although some sleepers prefer the more responsive feel of pocket springs and natural-fibre upholstery.

Different body weights and the zip-and-link solution

When two partners have significantly different body weights, say one person at 10 stone and another at 18 stone, a single spring tension will often represent a compromise.

The cleanest solution is a zip-and-link mattress, where two separate mattresses of different tensions are zipped together.

We offer split tension in zip-and-link format across several ranges.

A zip-and-link is not a workaround; it is a practical solution for two people with meaningfully different requirements who share a bed.

Depending on the model, a split-tension mattress may also be available, allowing different spring tensions on either side of a single mattress.

If you and your partner need different levels of support, consider the Artisan Naturals or Artisan Bespoke 004 and speak to our team about the available tension and zip-and-link configurations.

11. UK mattress sizes: complete guide

UK mattress dimensions are not fully standardised across all retailers. The following table covers the standard UK sizes; actual dimensions and manufacturing tolerances should be checked with the retailer before ordering.

Size	Width × Length (cm)	Width × Length (imperial)	Notes
Small Single	75 × 190cm	2’6″ × 6’3″	Children’s rooms, bunk beds
Single	90 × 190cm	3’0″ × 6’3″	Standard single adult bed
Small Double	120 × 190cm	4’0″ × 6’3″	Spare rooms; tight for two adults
Double	135 × 190cm	4’6″ × 6’3″	Provides 67.5cm of width per person when shared
King Size	150 × 200cm	5’0″ × 6’6″	A popular option for couples wanting additional space
Super King	180 × 200cm	6’0″ × 6’6″	Provides 90cm of width per person when shared

Anyone over 5 feet 10 inches tall should consider a king or super king mattress, as the standard 190cm length of a single or double may leave limited clearance depending on sleeping position and personal preference.

A standard UK double gives each person sharing it just 67.5cm of width, which is narrower than a single bed.

This is worth bearing in mind if two adults are currently sharing a double and sleeping poorly, because the size itself may be the problem before any discussion of mattress quality is relevant.

For detailed guidance on dimensions, including less common sizes and zip-and-link options, see our mattress advice guides.

12. Bed-in-a-box vs handmade: an honest comparison

Bed-in-a-box brands such as Emma, Simba, Nectar, Casper, Eve and others have grown considerably since they entered the UK market around 2015.

They offer genuine convenience: ordered online, compressed and rolled into a box, then delivered in compact packaging.

It is worth being clear about what that convenience involves.

Many bed-in-a-box mattresses use foam-based constructions, sometimes combined with pocket springs. The materials and construction must be suitable for compression and subsequent expansion.

Traditional handmade mattresses with substantial natural-fibre upholstery, hand tufting and certain spring constructions are generally delivered flat rather than compressed.

This does not automatically make every boxed mattress inferior, but it does mean the two approaches can involve different materials, manufacturing methods and comfort characteristics.

The 100-night, 200-night or 365-night sleep trials offered by these brands are frequently cited as a major advantage.

They are a genuine benefit, but the conditions vary between retailers, including eligibility, collection arrangements and any applicable fees.

John Ryan’s 60-day guarantee provides a further opportunity to assess whether your mattress is suitable, subject to the current terms and conditions.

When comparing a boxed mattress with a traditionally handmade alternative, consider the spring specification, upholstery materials, whether the mattress is double-sided, the guarantee and the expected long-term value.

A well-made, two-sided pocket-sprung mattress with substantial natural-fibre upholstery may offer excellent longevity, although the lifespan of any mattress depends on its construction, use and maintenance.

For an example of traditional handmade construction, explore the Artisan Naturals or Artisan Luxury.

13. Bed base compatibility

The base your mattress sits on directly affects how the mattress performs and how long it lasts.

A pocket-spring mattress requires support across its full surface, not just around the perimeter.

Slatted bases are compatible with pocket-spring mattresses provided the slats are appropriately spaced and sufficiently supportive for the mattress being used.

As a general guide, gaps of approximately 7cm or less are often recommended, but always check the requirements for your specific mattress.

Wider gaps may allow sections of the mattress to settle unevenly between the slats, potentially contributing to premature wear.

A platform-top divan provides a consistent supporting surface and can be an excellent option for pocket-sprung mattresses. Sprung divans may also be suitable for particular models, depending on the intended overall comfort feel.

Avoid placing a pocket-spring mattress directly on the floor, as restricted airflow beneath the mattress can increase the risk of moisture accumulation, particularly in poorly ventilated rooms.

For more detailed advice, see our mattress buying and bed base guidance.

14. Mattress care and when to replace

A quality mattress is a significant investment, and how you care for it directly affects how long it performs well.

A two-sided mattress should be rotated head-to-foot and turned top-to-bottom in accordance with the manufacturer’s recommended schedule.

Regular turning and rotation help distribute upholstery settlement more evenly across both sleeping surfaces.

A fitted cotton mattress protector is strongly recommended from day one, as it helps protect the upholstery from perspiration, spills and everyday debris.

When choosing a protector for a natural-fibre mattress, consider breathability alongside any waterproofing requirements. Different materials can affect the overall sleeping environment.

The NBF recommends considering replacement every seven years as a general guide.

However, this is not a fixed expiry date, and the useful lifespan of a mattress depends on its materials, construction and condition.

Signs that replacement may be necessary include visible sagging, springs that are perceptibly felt through the surface, a noticeable loss of comfort or support, and persistent discomfort that appears related to the sleeping surface.

A quality two-sided pocket-spring mattress with natural-fibre upholstery, properly cared for, may remain suitable for considerably longer than a lower-specification mattress. Rather than relying on a specific number of years, assess how the mattress is performing.

If you’re considering replacing your current mattress, browse our mattress range or speak to our team about your existing mattress and the improvements you’re looking for.

15. Your UK consumer rights when buying a mattress

Understanding your consumer rights before purchasing a mattress can help you compare retailers and their returns policies with greater confidence.

If you buy a mattress online, you are protected by the Consumer Contracts Regulations 2013, which generally provide a 14-day cancellation period for eligible distance purchases.

However, the precise rights and any exceptions depend on the circumstances of the purchase. You should not assume that every used, customised or unsealed mattress can be returned without conditions or costs.

In-store purchases do not carry the same automatic statutory right to cancel simply because you have changed your mind.

The Consumer Rights Act 2015 protects you if the mattress is faulty or not as described, but not if you change your mind.

John Ryan’s 60-day guarantee provides additional protection beyond statutory rights, subject to the current terms of the guarantee.

If you pay for a mattress costing more than £100 using a credit card, Section 75 of the Consumer Credit Act 1974 may make the credit card provider jointly liable with the retailer for certain breaches of contract or misrepresentation, provided the relevant eligibility conditions are met.

For eligible mattress purchases over £100, using a credit card rather than a debit card can therefore provide an additional layer of protection.

The term “orthopaedic mattress” has no single prescribed technical specification in the UK.

Rather than relying on this label alone, look at the mattress’s spring tension, upholstery and suitability for your body weight and comfort requirements.

Claims such as “medically recommended”, “clinically proven” and “back care approved” should also be supported by appropriate evidence rather than accepted solely as marketing descriptions.

16. How to compare mattresses side by side

When you are wondering how to choose a mattress and are faced with 5,000 or more models, you really do need to make like-for-like comparisons.

This section guides you through comparing like-for-like models, which is not particularly easy when manufacturers and retailers do not provide the information you need.

The key to comparing is knowing the spring type, tension, mattress upholstery GSM, fibre layering and construction methods.

Not every retailer publishes this level of detail, so it is worth asking for the full specification before making a purchase.

A retailer who freely provides full specifications is demonstrating confidence in their product; where information is unavailable, you may find it more difficult to establish whether the mattress represents good value.

Below is an example of how to compare two mattresses side by side. The detail that becomes visible when specifications are published shows you exactly what your money is buying.

Example mattress specification comparison

	John Ryan By Design Artisan Naturals	Vi Spring Regal Superb
1	1200gsm Blended British Fleece Wool and Cotton.	900gsm Blended real Shetland Isle Fleece Wool and Cotton
2	Hairproof Cambric Cover	Hairproof Cambric Cover
3	1250gsm Rebound Poly Cotton	1200gsm long stranded Horsetail blended with British Fleece Wool
4	1500gsm 100% Pure Mohair	1000gsm Bonded British Fleece Wool and Cotton
5	1600 Calico encased Pocket Springs [ 49mm ] [1.28mm ]	1720 Calico encased Pocket Springs [48mm ] [1.28mm ]
Total GSM	3950gsm	3100gsm

The comparison exercise works equally well when looking at two mattresses at the same price point from different retailers.

Once you know what to ask for, the differences in construction, upholstery and overall value become much easier to identify.

John Ryan mattresses: where to start

If you are looking for a starting point within our own range, the following gives a brief orientation by budget and need. All prices shown are king-size.

Model	King Size Price	Best suited to
Origins Pocket 1500	£1,050	Entry-level with genuine pocket springs; a good first step into quality
Origins Natural Comfort	£1,300	Natural fibre introduction; 2,550gsm of natural upholstery including British Wool and Cashmere blend
Artisan Naturals	£2,180	Premium natural fibre with Mohair and Wool; 3,950gsm total; hand-tufted two-sided
Artisan Bespoke 004	£2,860	Horsehair upholstery with Wool and Cotton; 3,600gsm; calico-encased 1,600 springs
Artisan Luxury	£2,955	4,600gsm natural fibre: Horsehair, Horsetail, Wool, Cotton, Bamboo; hand-tufted
Legacy Two	£5,550	Our finest model; British Alpaca, Swaledale Wool, Horsetail, Organic Flax; 5,400gsm; 2,508 two-tier calico-encased springs

Every mattress is handmade to order at our facility in Manchester.

We offer a 60-day full money-back guarantee with free collection and no restocking fees, not an exchange.

If you would like help choosing the right model, tension, or size for your specific situation, call our team on 0161 437 4419 or use the ask a question feature below.

Browse our full mattress collection or explore the Origins range and natural-fibre pocket sprung mattresses to compare your options.

17. Frequently asked questions

How do I know which mattress firmness I need?

Start with your body weight and sleeping position. Up to around 16 stone, a medium spring tension suits most people. Above 16 stone, a firm tension is usually needed. These are general guidelines rather than universal rules, and the correct tension depends on the spring unit used in the particular mattress. Side sleepers generally benefit from softer upholstery layers; back and stomach sleepers may prefer a more supportive surface, depending on body weight and comfort preferences. Remember that spring tension and comfort feel are separate specifications, so it is possible to have a firm spring with a soft upholstery surface.

What is the difference between spring tension and mattress firmness?

Spring tension refers to the resistance of the springs inside the mattress and is primarily determined by the wire gauge. The depth and density of the upholstery layers above the springs determine firmness as a comfort feel. The two are related but distinct specifications. A mattress with firm springs but deep natural fibre upholstery can feel quite soft on top. Always ask which specification is being described when a retailer uses the word “firm”.

How often should I replace my mattress?

The NBF advises considering replacement around the seven-year mark. A quality two-sided pocket-spring mattress with natural-fibre upholstery, properly cared for and turned regularly, may last considerably longer. A one-sided foam mattress may require replacement sooner, although the actual lifespan depends on its construction and use. The most reliable sign that a mattress needs replacing is a noticeable deterioration in comfort, support or physical condition rather than its age alone.

Is memory foam or pocket spring better?

They serve different purposes, and both have genuine advantages. Pocket-spring mattresses provide responsive, individualised support and can offer excellent breathability when combined with suitable upholstery. Memory foam provides pressure relief and motion isolation, although some sleepers find it retains heat or feels less responsive when changing position. For buyers prioritising traditional construction, natural-fibre upholstery and a mattress that can be turned, a quality pocket-spring mattress may represent better long-term value. For a more detailed comparison, read our Pocket Spring Mattress Guide.

What is the minimum spring count I should look for in a king-size mattress?

A minimum of around 1,000 pocket springs in a king-size mattress is a useful starting point. Be cautious of counts above 3,000, which may include additional micro-spring layers or smaller springs rather than a single traditional spring unit. A 1,600-count mattress with calico-encased springs and an appropriate wire specification may be preferable to a much higher-count mattress, but the overall construction and upholstery should determine the comparison.

Can I return a mattress if I do not find it comfortable?

Online purchases generally provide a statutory cancellation period of 14 days under the Consumer Contracts Regulations 2013, although eligibility and exceptions must be considered. In-store purchases do not carry the same automatic statutory right. John Ryan’s 60-day guarantee applies to eligible purchases in accordance with its current terms and conditions and covers comfort-based dissatisfaction with a full refund. Always review the retailer’s returns policy and any relevant statutory rights before purchasing.

Are expensive mattresses worth the money?

At certain price points, yes. The key is specification transparency. A £2,000 mattress with published GSM data, calico-encased springs, hand-tufted, two-sided construction, and a genuine guarantee is worth considering if those specifications suit your needs. A £2,000 mattress with no GSM disclosure and a complex exchange-only returns policy may not be. Price should be assessed alongside the materials, construction, suitability and long-term value rather than treated as a quality indicator on its own.

What does “orthopaedic mattress” mean?

“Orthopaedic” is not a guarantee that a mattress has been medically approved or will relieve back pain. There is no single prescribed technical specification for an orthopaedic mattress in the UK, so the term should not replace an assessment of the mattress’s actual support and comfort characteristics. If you are looking for a mattress to support a back condition, the relevant specifications are spring tension appropriate for your weight, upholstery depth and type, and construction method. For persistent back pain, seek appropriate medical advice rather than relying on mattress marketing claims.

What is a hybrid mattress?

A hybrid mattress combines a pocket-spring support core with a foam or latex comfort layer above it. Quality varies widely in this category. At the top end, hybrids combine good spring systems with substantive latex or other carefully specified comfort layers. At the lower end, a thin layer of memory foam over a basic spring unit may be described as a hybrid without offering the meaningful benefits of either construction type. Ask for the depth and specification of each component.

How do I choose a mattress for two people with different weights?

The cleanest solution is a zip-and-link mattress, where two separate mattresses made in different tensions zip together to form a single sleeping surface with a central join. This allows each person to have the spring tension appropriate for their body weight without either partner compromising. We offer zip-and-link options across multiple ranges. Depending on the mattress, split-tension construction may also be available. Our team can help you compare both options.

What size mattress should I buy?

For a couple, a king-size (150 × 200cm) is often a good starting point if the room and budget allow. A standard double gives each person only 67.5cm of width. If one or both partners are over 5 feet 10 inches tall, the 200cm length of a king may also provide a more comfortable fit. For a single adult wanting a proper sleeping surface, a small double provides considerably more space than a standard single without requiring a much larger room. Once you’ve narrowed down the right size, explore our mattress range or contact our team for advice on the most suitable model and spring tension.