Mattress sizes & weights

It’s sometimes important to check exactly how big and heavy a mattress is.  We’ve gathered all the size and weights of John Ryan By Designs mattresses here to help you when making your decision.


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?

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 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, therefore, advise you 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? 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)13"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
We can make our mattresses, bases and headboards to any size with our custom ordering. Please get in touch if you need a bespoke sizes bed, we would be happy to help! 0161 945 3757 or [email protected]


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.

We’re here to help

Speak to our small friendly team between 9am – 5pm and we’ll be happy to guide you through any questions you may have.

Call today 0161 945 3757

  • Andy says:

    I’ve got a non-standard bed frame 6 foot 9.5 inches by 5 foot 2.5 inches internal measurements. I think it was once a four-poster. I’ve fitted plywood slats. How much would a Fusion 2 latex 80/20 firm mattress cost to fit this frame? Would firm feel very firm on the slats? I’m wondering if it might be best to go for an 6’6” mattress by 5’2” which will fit standard sheets, with a 3.5in slab of foam with same cover material as the mattress at the head end? Would that be possible/sensible??


    Hi Andy, Thanks for getting in touch. It sounds like an interesting base! What I would suggest first and foremost after fitting the slats that you board them with MDF or plywood as the latex model you’re looking at is only recommended for flat consistent surfaces. If you put it directly on slats you may find the latex conforms not only to your body as you sleep but the slats its placed on. You can end up with slight undulations if not careful you see.

    I would need to know your weight and height to advise on the correct tension for your mattress.

    As of the 3.5 inches difference, my advice would be not to try and fill it wit foam. I would advise that by the time sheets and a duvet are neatly tucked under the end of the bed the gap will be negligible. I think the foam block would just get in your way and make changing the bedding somewhat frustrating!! You could order a bespoke size mattress to fit this size, being aware that mattresses/furniture come with a +/-2cm tolerance for sizing any way. This could be done for you but I’d need to price it accordingly. The option is however yours to choose.

    The Fusion 2 in European Kingsize is £1200. If you want any more information Andy please just give us a call. – Lee

  • Neil says:

    Hello, I would like a soft 100% latex topper but my bed mattress size is 2100 x 870mm. Do you make non standard sizes and what would the cost be (and shipping to the Isle of Wight; PO30 4DL)?
    Thank you.

    Hi Neil, Thats a very specific size bed! Am I right that its a 6”9 long single? We can do bespoke sizes, they are however excluded from the Love it or return it guarantee being non standard, but we don’t deliver to the Isle of Wight I’m afraid.

    We have had customers in the past who have arranged for the bed to be delivered to a port and then their own courier to collect and take to the Isle of Wight.

    Our latex toppers are a medium 70kg density so might not be suitable if you’re wanting soft I’m afraid. If you want to call us to discuss any of this and potential toppers please give us a ring Neil. – Lee

  • Bob says:

    I am looking for two mattresses 100cm x 200cm to fit a continental bed. Can you help? Thank you for your help.

    Hi Bob, We do continental bed sizes but the sizes you’ve given are not continental, unless they’ve been mistyped!!

    The sizes we supply in mattresses are found here on our site.

    I’d need a bit more information such as body weight, preferred tension and height to recommend a mattress for you, alternatively if you give us a call we can help.

    If you do need a completely bespoke size we can do this but this would not be covered by our 30 day love it or return it guarantee. Lee

  • Mrs Law says:

    I think that I should replace my mattress for my adjustable double bed. I am the only user – about 10st7lb. Most nights the adjustable facility is used as I sit up in bed to watch TV. Please can you advise me what mattress would be most suitable.

    Thank you

    For adjustable beds we usually recommend foam beds, particularly latex as these are the most responsive and robust which is key when the mattress is being adjusted and moved on a frequent basis. You also need to bear in mind the weight limits for your adjustable mattress which usually come with the instructions.

    For your weight I’d ask you to look at our reduced height range in the medium, these fusion mattresses are 100% natural solid core latex and can be found here. If you need any advice please get back in touch. – Lee

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