September 2013

Mattress sizes & weights

It's sometimes important to check exactly how big and heavy a mattress is.  Especially if you're wanting to squeeze a slightly larger mattress into your bedroom. After all who doesn't want a bigger bed?

We’ve gathered all the size and weights of John Ryan By Designs mattresses here to help you when making your decision. This article will help you find the right mattress size for your bedroom.


Whilst all our own bases can accommodate any of our models some other retailer mattress bases may have a weight limit so it’s best to check. If you’re asking ‘what size is a mattress?’ then read on for more help.

What sizes of mattress are there?

There are a number of mattress size conventions across the world. This post will detail all the UK sizes including mattress bases. We also offer a bespoke mattress making service so if you’ve got an unusual size requirement we can accommodate that too!

John Ryan Legacy mattress and Base with throw
Why not move up a size for ultimate comfort in bed?

We supply all of these UK sizes as standard

Zip & Link mattress sizes

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 SizeOrigins ComfortOrigins ReflexOrigins 1500Origins Latex 1500


Mattress SizeArtisan 1500Artisan Tailored PocketArtisan Naturals


Mattress SizeArtisan Bespoke 004Artisan LuxuryArtisan BespokeArtisan Bespoke 002


Hybrid / Resilience Range   
Mattress SizeMattresses5cm Topper7.5cm Topper
Single 16-18kg6-8kg8-10kg
Double 24-26kg10-12kg12-14kg
King 30-32kg11-13kg15-17kg
Superking 35-37kg13-15kg16-18kg


Fusion Range   
Mattress SizeMattresses5cm Topper7.5cm Topper
Single 25-27kg12-14kg14-16kg
Double 35-38kg20-24kg24-28kg
King 40-45kg22-26kg26-30kg
Superking 45-50kg26-32kg32-38kg


Mattress SizeArtisan Bespoke 003Artisan SublimeThe Legacy
Bed bases offer a number of storage options
Bed bases offer a number of storage options
It's important to check you have enough access to fit a larger bed
It's important to check you have enough access to fit a larger bed

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.

Base SizeDimensions
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)
*These dimensions are covered by a tolerance of up to 2cm. Bases are usually slightly wider and longer than their counterpart mattress.

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.

Base TypeDepth of BaseDrawer Dimensions / Internal depth
Platform Top12"32″ wide, 20″ deep and 9″ high (Continental drawers 17.5" wide)
Ottoman15"10" internal depth storage
Artisan Sprung (no drawers12"NA
Artisan Sprung (with drawers)12"32″ wide, 20″ deep and 9″ high (Continental drawers 17.5" wide)

Legacy Mattress Sizes

Total Bed Frame SizeDimensionsDepth of Sprung BaseMattress DepthBase Pad Depth
Single 3′3 x 6’6″ (110cm x 200cm)13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm
Double 4’9″ x 6’6″ (149cm x 200cm)13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm
King 5′3 x 6’9″ (162cm x 210cm)13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm
Super King 6′3 x 6’9″ (192cm x 210cm)13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm
King Zip & Link5′3 x 6’9″ (162cm x 210cm)13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm
Super King Zip & Link6′3 x 6’9″ (192cm x 210cm)13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm
Extra King Zip & Link6′3 x 6’6" (192cm x 200cm)13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm
HeadboardsStandard Height 50" Plus additional 3 inch / 8cm in width 13" / 33cm (with Castors 15" 38cm)11" / 28cm8.5" / 22cm

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.

Under our Bespoke Service

  • 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.

Bespoke Mattress Sizes that can be custom orderedFeet & InchesCentimeters
2ft9 x 6ft291cm x 190cm
3ft x 6ft690cm x 200cm
4ft x 6ft6120cm x 200cm
4ft8 x 6ft3146cm x 192cm
5ft3 x 6ft6
160cm x 202cm
5ft5 x 6ft5170cm x 200cm
5ft5 x 6ft5183cm x 199cm
6ft x 6ft5180cm x 198cm
6ft x 7ft4184cm x 228cm
6ft3 x 6ft6193cm x 203cm
6ft6 x 6ft6200cm x 200cm
6ft6 x 6ft6220cm x 200cm
Bespoke Headboard Sizes can be custom made
40" in total height 20" x 20"
44" in total height 24" x 20"
Bespoke Bed Base sizes can be custom madeCan be made to measure please get in touch

Do you need a different size or shape altogether?  If so then please get in touch and we can provide expert advice and guidance through our bespoke service. We have plenty of experience of making bespoke mattresses for antique bed frames, houseboats, caravans, motorhomes and other bespoke sleeping arrangements.

Don't you deserve a mattress tailored just for you?
Our small friendly team can help you choose a mattress specifically tailored to your needs. With our 60 Day Love it or Return it Guarantee its completely risk-free.

We’re here to help

  • We are the mattress experts! Ask us anything about any mattress by any manufacturer for honest advice and support.

Want to see what mattress will fit in your bedroom? Get in touch!
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