Experience luxury that fits properly with our Artisan 450 Thread Count Pima Cotton Extra Deep Fitted Sheet.
Crafted from 100% pure Pima cotton with extra-long staple fibres, this sheet delivers exceptional softness and durability through true single-ply construction. The generous 38cm depth ensures a secure, no-pull-out fit on mattresses up to 30cm deep, even when using toppers and protectors. Fully elasticated at all four corners, the sheet holds neatly around your mattress without loosening during the night.
The sateen weave provides a wonderfully smooth finish with subtle sheen, whilst the natural cotton remains cool, moisture-absorbing and temperature-regulating. Designed to complement our Artisan mattress collection, this fitted sheet represents the same commitment to quality natural fibres and expert craftsmanship that defines John Ryan by Design.
PRODUCT SPECIFICATIONS
- Thread Count: 450 threads per square inch (true single-ply construction)
- Composition: 100% Pure Pima Cotton
- Staple Length: Extra-long staple fibres
- Weave Type: Sateen (satin-woven for lustrous finish)
- Depth: 38cm (15 inches) total depth
- Fits Mattresses: Up to 35cm (12 inches) deep
- Recommended Use: Mattresses plus toppers/protectors up to 35cm total thickness
- Elastic: Fully elasticated at all four corners for a secure fit
- Processing: Combed fibres for superior softness
- Finish: Smooth, silky, with natural sheen
- Care: Machine washable at 40°C
- Origin: Premium quality materials, expert craftsmanship standards
- Properties: Naturally breathable, moisture-absorbing, temperature-regulating, cool to the touch
- Available Sizes: Single, Double, King, Super King

Bedding FAQ
Why do I need an extra deep fitted sheet?
Standard fitted sheets typically accommodate mattresses up to 25cm deep. Modern mattresses, particularly natural fibre models like our Artisan range, often measure 28-33cm deep. When you add a mattress topper (5-7.5cm) and protector (1-2cm), standard sheets simply won’t fit properly. Our 38cm extra deep design ensures a secure fit on mattresses up to 35cm deep, with enough depth to accommodate toppers and protectors without pulling loose or popping off corners during the night.
How does this compare to the Origins and Luxury Artisan bedding?
This Artisan fitted sheet matches our Artisan duvet cover sets in specification: 100% pure Pima cotton with true 450 thread count single-ply construction. It sits between Origins (cotton-rich blend, 500TC, wrinkle-resistant, easy care) and Luxury Artisan (100% Egyptian cotton, 1000TC, ultimate luxury). The Artisan range offers pure natural fibre performance with excellent durability, perfect for those who prioritise genuine cotton without the premium pricing of Egyptian cotton.
Will this fit my mattress?
Measure your mattress depth from the bottom to the top surface. If your mattress alone measures up to 35cm, this sheet will fit perfectly. If you’re using a topper, add that depth to your mattress measurement. The total should not exceed 35cm. We recommend fitted sheets sit 8cm deeper than your total mattress thickness, so the 38cm depth provides the ideal fit with extra fabric tucked neatly underneath. If your mattress exceeds 30cm with toppers, please contact us for recommendations.
What makes Pima cotton special?
Pima cotton represents less than 3% of global cotton production. The extra-long staple fibres (35% longer than standard cotton) are combed to remove shorter fibres and impurities, then satin-woven to create exceptionally smooth, durable fabric. This processing results in superior softness, better breathability, and longer-lasting quality compared to standard cottons. The natural sheen and silky feel are inherent to properly processed Pima cotton.
Will the elastic wear out?
We use generous elastication at all four corners, specifically engineered to maintain tension through years of use and washing. Pima cotton’s durability extends to the elastic casings, which resist breakdown better than cheaper alternatives. To maximise lifespan, avoid excessively high heat when washing and drying. Most customers report that the elastic remains effective for many years with proper care.
How do I care for Pima cotton sheets?
Machine wash at 40°C using mild detergent. Avoid bleach or fabric softeners, which can damage natural fibres and reduce the sateen sheen. Tumble dry on low heat or line dry. Remove promptly from the dryer to minimise wrinkling. Use a warm iron if desired, though many customers find the natural drape acceptable with minimal pressing. The sheets actually improve with washing, becoming softer and more supple over time.
Can I mix this with other bedding ranges?
Absolutely. Whilst designed to complement Artisan duvet covers and pillowcases, this fitted sheet works beautifully with any of our bedding collections or your existing bed linen. The neutral sateen finish coordinates with most bedroom styles. Many customers mix ranges based on practical needs, using extra deep fitted sheets where required, whilst choosing flat sheets and duvet covers based on colour or finishing preferences.
What colours are available?
We offer a range of colours to suit various bedroom styles and personal preferences. Please check the product page for current colour availability, as our selection evolves based on customer demand and seasonal trends. All colours use the same premium Pima cotton with identical specifications and performance characteristics.
Why single-ply rather than multi-ply yarns?
Single-ply construction produces softer, more breathable fabric that drapes better and lasts longer than multi-ply alternatives. Many manufacturers use multi-ply yarns (twisting multiple threads together) to artificially inflate thread counts for marketing purposes. Our true 450 count with single-ply yarns delivers genuine quality rather than impressive-sounding numbers. The fabric moves more naturally, feels silkier, and maintains its performance characteristics through years of washing.
Summary
Pure luxury that stays put. Our extra deep fitted sheet features 100% Pima cotton at true 450 thread count with single-ply construction.
The 38cm depth accommodates mattresses up to 35cm deep, plus toppers and protectors.
Generously elasticated at all four corners for a secure fit that won’t pop off during the night. Sateen weave creates a lustrous finish. Cool, moisture-absorbing, temperature-regulating.
Pairs perfectly with our Artisan or Origins mattress range. Available in multiple sizes and colours.
Mattress Endorsements
John Ryan is a NBF (National Bed Federation) Premier Retail Champion. The National Bed Federation is the recognised trade association representing UK manufacturers of beds and their suppliers.
We are also members of the Guild of Mastercraftsmen, showing our focus is firmly on quality and supplying only the best built and constructed mattresses available that can be retailed at a fair and acceptable price.
FAQs
At John Ryan By Design, we pride ourselves on offering not only amazing mattresses, but also straight-talking, quality information about the world of mattresses. You might say that we’re obsessed with mattresses, and because of that our in-house team of experts are always on hand to answer your questions, and provide you with a wide range of advice and guidance.
However, when you’ve been doing this for as long as we have, you tend to notice that some questions get asked very regularly. We’ve therefore listened to what you need to know, and have put together a growing series of FAQs to help you to quickly find the answers you need!
No, and no showroom or retailer sells our products. This is part of the reason why our prices can be so competitive: our internet-based company model allows us to avoid passing the excessive costs of other retailers on to our customers. Most staff within showrooms are also not bed experts (unlike our own in-house team). Sadly, such staff probably wouldn’t understand mattress manufacture to the extent that they could reliably answer your questions. To give you confidence in our way of doing things, our 60-day “love it or return it” guarantee offers the ability to return a mattress that doesn’t suit you for a full refund, or you can perform a one-time exchange and swap to an alternative model. You can visit our guarantee page for more information, or our article about buying a mattress online to see just why our approach actually benefits you!
From the time you place your order, there is a 4 week average lead time until delivery for most of our mattress models. This is because all of our mattresses, bases and headboards are handmade to order especially for you! You can visit our delivery page for more information.
No. At present, we don’t ship or deliver worldwide. However, we can deliver your purchase to any UK port that you choose, allowing you to arrange onward delivery from there. If you take advantage of this, please do note that exercising our 60-day “love it or return it” guarantee would require you to return your purchase to us at your own cost.
Ask us a question.
Why buy a John Ryan Mattress
Our hand made UK mattresses are crafted from materials that are designed to provide you with a long-lasting experience. We’re upfront about every aspect of the buying process, from price range to the overall quality of a mattress.
If you’re not satisfied with what we’ve recommended then we operate under a 100% Money Back Guarantee. This means that if you aren’t happy with a product within 60 days we’ll arrange for the mattress to be collected free of charge. If your new mattress hasn’t met your expectations then we want to know about it, and we’ll ensure you find the mattress that’s right for you or provide a full refund.
Handmade in the UK
All of our mattresses are handmade in the UK and split into the following ranges:
Artisan – Bespoke pocket spring mattresses that contain natural fibres
John Ryan Express – Hand-made mattresses
Resilience – Supportive mattresses built for larger sleepers
Our quality mattresses range from Man Made pocket sprung to Natural Fibre pocket sprung, with every product finding the balance between comfort and value. Pocket sprung mattresses are one of the best choices because they are constructed to a high standard. Our best selling Origins Pocket 1500 mattress is comfortable and great value for money. Choosing the right mattress comes down to build quality and price, so you’ll want to keep that in mind.
We are the mattress geeks
As members of the Institute of Spring Technology and Guild of Master Craftsmen, we pride ourselves on being experts in our field.

For Free Advice Call 0161 437 4419
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Legacy Size Guide
| Legacy Mattress | Size | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 42kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 56kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 63kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 69kg |
| Extra King | 6' x 6'3" (180cm x 190cm) | 80kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 83kg |
Bed Frame Details
Size Guide
| Mattress Size | Mattresses | 5cm Topper | 7.5cm Topper |
|---|---|---|---|
| Single | 25-27kg | 12-14kg | 14-16kg |
| Double | 35-38kg | 20-24kg | 24-28kg |
| King | 40-45kg | 22-26kg | 26-30kg |
| Superking | 45-50kg | 26-32kg | 32-38kg |
Grading
| Grade | Discount | Description |
|---|---|---|
| B | 20% DISCOUNT | Will have been used by a customer and returned under the 60 night love it or return it guarantee, it may have a few marks from transit and courier handling. |
| C | 40% DISCOUNT | Will have been used by a customer and returned under the 60 night love it or return it guarantee, it will have quite a few marks and could even have a small tear, nothing detrimental to the life or use of the mattress. |
Our team will be able to guide you to the right product for you and your budget. We grade the products in our warehouse and the grading is decided based on the condition of the product upon return. All mattresses are Grade B or C. At this stage we cannot give you the history of each product or the very specifics of where any marks may be located so if this is important for you to know then a clearance bed may not be for you and you can choose your mattress in the normal way. We do however guarantee that the condition will be no worse than described below and in most cases is actually better!
Size Guide
| Mattress Size | Dimensions |
|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) |
| Small Double | 4' x 6’3" (120cm x 190cm) |
| Double | 4’6″ x 6’3″ (135cm x 190cm) |
| King | 5′ x 6’6″ (150cm x 200cm) |
| Extra King | 6’ x 6’3" (180cm x 190cm) |
| Super King | 6′ x 6’6″ (180cm x 200cm) |
Size Guide
| Mattress Size | Dimensions |
|---|---|
| Small Single | 2’ 6” x 6’3” (80cm x 190cm) |
| Single | 3′ x 6’3″ (90cm x 190cm) |
| Small Double | 4″ x 6’3 (120cm x 190cm) |
| Double | 4’6″ x 6’3″ (135cm x 190cm) |
| Continental Double | 4’7” x 6’6” (140cm x 200cm) |
| King | 5′ x 6’6″ (150cm x 200cm) |
| Continental King | 5’3″ x 6’6″ (160cm x 200cm) |
| Extra King | 6’0 x 6’3 (182cm x 190cm) |
| Super King | 6′ x 6’6″ (180cm x 200cm) |
Size Guide
| Mattress Size | Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 42kg |
| Small Double | 4″ x 6’3 (120cm x 190cm) | 56kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 63kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 69kg |
| Extra King | 6’0 x 6’3 (182cm x 190cm) | 80kg |
| Super King | 6′ x 6’6″ (180cm x 200cm) | 83kg |
Size Guide Artisan Bespoke 003
| Mattress Size | Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 43kg |
| Small Double | 4″ x 6’3 (120cm x 190cm) | 57kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 64kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 70kg |
| Extra King | 6’0 x 6’3 (182cm x 190cm) | 82kg |
| Super King | 6′ x 6’6″ (180cm x 200cm) | 85kg |
Size Guide
| Artisan Bespoke | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 36kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 48kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 54kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 63kg |
| Extra King | 6' x 6'6" (180cm x 190cm) | 73kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 75kg |
Size Guide
| Artisan Bespoke | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 39kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 52kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 58kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 69kg |
| Extra King | 6' x 6'3" (180cm x 190cm) | 76kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 78kg |
Size Guide
| Artisan Luxury | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 37kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 45kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 55kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 61kg |
| Extra King | 6' x 6'3" (180cm x190cm) | 71kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 74kg |
Size Guide
| Artisan Bespoke 004 | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 36kg |
| Small Double | 4' x 6'3" (120cm x190cm) | 48kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 54kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 60kg |
| Extra King | 6' x 6'3" (180cm x 190cm) | 70kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 73kg |
Size Guide
| Artisan Tailored Pocket | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 35kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 46kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 52kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 62kg |
| Extra king | 6' x 6'3" (180cm x 190cm) | 72kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 74kg |
Tension Guide
| Artisan Spring Tension | Weight Range |
|---|---|
| Soft | Available as a Bespoke Product (Please Call) |
| Medium | Upto 16 stone / 101kg |
| Firm | Over 16 stone / 101kg |
Base Guide
| Size | No Drawers | 2 Full Drawers | 4 Full Drawers |
|---|---|---|---|
| Single | £205 | £265 | - |
| Small Double | £240 | £300 | £360 |
| Double | £240 | £300 | £360 |
| King Size | £300 | £360 | £420 |
| Superking | £360 | £420 | £480 |
| King Size Zip & Link | £300 | £360 | £420 |
| Super King Size Zip & Link | £360 | £420 | £480 |
| Extra King Size Zip & Link | £360 | £420 | £480 |
Base Guide
| Size | No Drawers | 2 Full Drawers | 4 Full Drawers | 2 Half 2 Full Drawers |
|---|---|---|---|---|
| Single | £0 | +£75 | - | - |
| Small Double | £0 | +£75 | +£150 | +£150 |
| Double | £0 | +£75 | +£150 | +£150 |
| King Size | £0 | +£75 | +£150 | +£150 |
| Superking | £0 | +£75 | +£150 | +£150 |
| King Size Zip & Link | £0 | +£75 | +£150 | +£150 |
| Super King Size Zip & Link | £0 | +£75 | +£150 | +£150 |
| Extra King Size Zip & Link | £0 | +£75 | +£150 | +£150 |
Size Guide
| Origins Comfort | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 23kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 31kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 35kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 40kg |
| Extra King Zip Link | 6' x 6'3" (180cm x 190cm) | 46kg |
| Super King Zip Link | 6' x 6'6" (180cm x 200cm) | 48kg |
Size Guide
| Resilience | Mattress Dimensions | Mattress Weight | 5cm Topper Weight | 7.5cm Topper Weight |
|---|---|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 16-18kg | 6-8kg | 8-10kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 24-26kg | 10-12kg | 12-14kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 30-32kg | 11-13kg | 15-17kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 35-37kg | 13-15kg | 16-18kg |
Size Guide
| Total Bed Frame Size | Dimensions | Depth of Sprung Base | Mattress Depth | Base Pad Depth |
|---|---|---|---|---|
| Single | 3′3 x 6’6″ (110cm x 200cm) | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
| Double | 4’9″ x 6’6″ (149cm x 200cm) | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
| King | 5′3 x 6’9″ (162cm x 210cm) | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
| Super King | 6′3 x 6’9″ (192cm x 210cm) | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
| King Zip & Link | 5′3 x 6’9″ (162cm x 210cm) | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
| Super King Zip & Link | 6′3 x 6’9″ (192cm x 210cm) | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
| Extra King Zip & Link | 6′3 x 6’6" (192cm x 200cm) | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
| Headboards | Standard Height 50" Plus additional 3 inch / 8cm in width | 13" / 33cm (with Castors 15" 38cm) | 11" / 28cm | 8.5" / 22cm |
Size Guide
| Cot mattress size | Length | Width | Depth |
|---|---|---|---|
| 120cm X 60cm X 10cm | 120cm | 60cm | 10cm |
| 140cm X 70cm X 10cm | 140cm | 70cm | 10cm |
Size Guide
| Artisan Naturals | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 36kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 48kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 50kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 60kg |
| Extra King | 6' x 6'3" (180cm x 190cm) | 69kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 72kg |
Size Guide
| Origins 1500 | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 32kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 43kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 48kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 56kg |
| Extra King Zip Link | 6' x 6'3" (180cm x 190cm) | 64kg |
| Superking Zip Link | 6′ x 6’6″ (180cm x 200cm) | 67kg |
Size Guide
| Origins Reflex | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 25kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 33kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 37kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 44kg |
| Extra King Zip Link | 6' x 6'3" (180cm x 190cm) | 49kg |
| Superking Zip Link | 6′ x 6’6″ (180cm x 200cm) | 52kg |
Size Guide
| Origins 1500 | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 28kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 37kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 42kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 49kg |
| Extra King Zip Link | 6' x 6'3" (180cm x 190cm) | 55kg |
| Superking Zip Link | 6′ x 6’6″ (180cm x 200cm) | 58kg |
Base Guide
| Sprung Edge Base | No Drawers | 2 Full Drawers | 4 Full Drawers | 2 Half 2 Full Drawers |
|---|---|---|---|---|
| Single | £0 | +£75 | - | - |
| Small Double/Double | £0 | +£75 | +£150 | +£150 |
| King Size | £0 | +£75 | +£150 | +£150 |
| Superking | £0 | +£75 | +£150 | +£150 |
| King Size Zip & Link | £0 | +£75 | +£150 | +£150 |
| Super King Size Zip & Link | £10 | +£75 | +£150 | +£150 |
Size Guide
| Artisan 1500 | Mattress Dimensions | Mattress Weight |
|---|---|---|
| Single | 3′ x 6’3″ (90cm x 190cm) | 35kg |
| Small Double | 4' x 6'3" (120cm x 190cm) | 47kg |
| Double | 4’6″ x 6’3″ (135cm x 190cm) | 52kg |
| King | 5′ x 6’6″ (150cm x 200cm) | 58kg |
| Extra King | 6' x 6'3" (180cm x 190cm) | 67kg |
| Superking | 6′ x 6’6″ (180cm x 200cm) | 70kg |
Tension Guide
| Artisan Spring Tension | Weight Range |
|---|---|
| Soft | Available as a Bespoke Product (Please Call) |
| Medium | 8-16 stone / 50-101kg |
| Firm | Over 16 stone / 101kg |