Updated 2020: We’ve gathered all the mattress and bed sizes here to help you shopping online for a new mattress. This article will help you find the right mattress size for your bedroom whether you are looking to supersize your mattress or find a bed to fit that tiny box room. We explain all about mattress sizes and the weights that will help you choose a new mattress. If you’re looking for guidance on mattress bases there’s a handy article here with explains everything about suitable mattress sizes and bases.

Find the right sized mattress can be confusing and in our experience, most people who don’t check in advance what bed will fit either end up with a bed that’s too small or won’t fit up the stairs. This is where our mattress size guide can help. It’s also important to check the weight of your new mattress, all our own bed bases can accommodate any of our models some other retailer mattress bases may have an upper weight limit. If you’re asking ‘what size is a mattress?’ then read on for more help.

• Mattress sizes in the UK
• Zip and link bed sizes
• What bed size is best?
• What’s the width of a single mattress?
• What’s the width of a double mattress?
• What’s the width of a kingsize mattress?
• What’s the width of a super kingsize mattress?
• Mattress depths
• Bed Base Sizes
• How are divan mattress bases split?
• How much does a mattress weigh?

Mattress Sizes UK

The following are the standard UK mattress sizes that we make our mattresses and bed bases in. Bespoke orders and bespoke size mattresses are available. See below.

• Small Single  2’ 6” x 6’3”  (80cm x 190cm)
• Single Mattresses  3′ x 6’3″ (90cm x 190cm)
• Small Double 4″ x 6’3 (120cm x 190cm)
• Double Mattresses  4’6″ x 6’3″ (135cm x 190cm)
• King Size Mattresses 5′ x 6’6″ (150cm x 200cm) – Most popular UK size
• Super King Size Mattresses 6′ x 6’6″ (180cm x 200cm)
• Extra King 6′ x 6’3  (180cm x 190cm)

Zip & Link mattress sizes

Zip and link beds are idea for differently weighted sleepers or if you want to be able to divide the bed periodically. Zip and links also make turning your mattress far easier.

• King Size Zip & Link 5’x 6’6 (Each half measuring 2’6 x 6’6)
• Super King Size Zip & Link 6′ x 6’6″ (Each half measuring 3’0 x 6’6)
• Extra King Size Zip & Link 6′ x 6’3 (Each half measuring 3’0 x 6’3)

What mattress & bed sizes are best?

There are a number of mattress size conventions across the world. This post will detail all the UK sizes including mattress bases so you can see which bed will fit in your bedroom. The UK’s most popular mattress size is a king size which allows ample space for two people sleeping next to each other when compared to the snug fit of a double. Did you also know that if you’ve got restricted access, narrow staircases or low ceilings then you can get your mattress made as a zip & link model enabling practically any sized house to have the ultimate dream mattress!

The best mattress size is usually the largest bed you can comfortably fit. A king-size mattress for 2 people affords you a generous space regardless of your sleeping position without making the mattress impossible to turn. Larger sizes are usually better as a zip and link mattress which we stock in all our ranges. Kingsize mattresses are the most popular in the UK.

We also offer a bespoke mattress making service so if you’ve got an unusual size requirement we can accommodate that too! Why not get in touch for the ultimate hand made mattress just for you!

Mattress depths

Our Origins range are 12-13 inches deep, 30-33cm and the Artisan range are 11-12 inches deep 27-30cm. The Fusion, Hybrid and Resilience depths are all stated on their respective product listings.

Mattress Size Guide Approximations

Please be aware that unlike other manufacturers we don’t class the mattress cover in the overall mattress depth.  Other companies will add 1-3cm to the overall depth of the mattress using the cover and quilt undulations as part of the foam which we find misleading.  We don’t think this is a fair practice, so we don’t count this 1-3cm in the overall depth of the mattress.  Please be aware when choosing your mattress it may be slightly deeper than listed due to the cover and undulations. We advise you to wait until your mattress arrives before purchasing additional covers and sheets to make sure they fit.

Bed Base Sizes

How big are mattress bases? Check out our dimension table to assist.

Mattress bases drawer dimensions

People often ask how big are mattress drawers and the depths of them. It’s important to know what you could fit in them as mattress base drawers can offer hidden storage for smaller bedrooms. Here is a guide for our John Ryan Mattress bases.

Legacy Mattress Sizes

Which way are divan bases split?

Weights of Mattresses

This is an approximate guide for the weight of our Mattresses. Please be aware there is a sometimes a variance and we can’t guarantee an exact weight for the mattresses this is why we sometimes give a range. You need to know the weight of the mattress to check that you base can support it. Cheap mattresses may weigh as little as 20kg for a king-size whereas a hand made mattress full of Natural mattress fillings can weight up to 80kg! 

Under our Bespoke Service

We can make mattresses to a number of non-standard sizes. Especially if you have antique bed frames, require beds for yachts or any other bespoke mattress requirements. There is a price increase for bespoke work and it’s not covered by the love it or return it guarantee. Please get in touch for more details with us directly.

• Ikea Double 4’7” x 6’6”  (140cm x 200cm)
• Ikea King  5’2″ x 6’6″ (160cm x 200cm)

European / Ikea sizes are usually slightly longer and wider than standard UK bed equivalents.  At present at John Ryan we don’t offer an Ikea Single equivalent as this is 6’6″ inches long where as a small single is 6’3″.  Our bespoke service can take orders of non-standard services such as this.