Bodyshape Boost 800 Pocket Ortho Double Mattress
The Bodyshape Boost 800 Pocket Ortho Mattress has 800 individually pocketed springs under a Reflex foam layer, which means you get a firm, supportive feel with a little cushioning on top.
- Firm feel for back sleepers
- Foam layer shapes around you
- Breathable fibres help dispel heat
£229
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Bodyshape Boost 800 Pocket Ortho Mattress
More available sizes
Mattress details
Mattress
Bodyshape Boost 800 Pocket Ortho Mattress
Size
Firmness
Firm
Construction
Foam
Orthopaedic
Pocket Spring
Rolled
Depth (cm)
24
Layers
4
Layer Details
Reflex foam
A layer of Reflex foam that shapes around your body. It gives a cushioned yet sturdy feel, so the firm surface isn't harsh.
Soft white fibres
Soft white fibres that increase airflow to help dispel heat. This means the mattress should feel fresher through the night.
Dense polyester fibres
Two layers of dense polyester fibres that enhance the firm feel. They also give the spring system extra support.
Pocket springs
A core of 800 pocket springs, each encased in its own fabric pocket. Each spring moves independently, so the mattress can respond to your body.
Layer details from mattressonline.co.uk product page, November 2026.
Key benefits
- Fits a typical main bedroom: We suggest a room of at least 2.6m x 2.8m, so the UK double sits easily where a UK king would leave you edging past the wardrobe.
- Firm support for two back sleepers: The firm feel suits couples who both sleep on their backs, and each pocket spring moves on its own, which means the mattress responds to each of you separately.
- Bedding is easy to find: Double sheets and a 200 x 200cm double duvet fit, and both are stocked almost everywhere, which helps when you're furnishing a whole home at once.
- A proper guest bed: In a spare room, a UK double gives visiting couples a shared bed with real support, without swallowing floor space you need for storage the rest of the year.
This size suits you if...
You share the bed with a partner who also likes a firm mattress and your bedroom is around 3m x 3m, or you sleep alone with a cat or dog who claims a corner, or you're kitting out a guest room for visiting couples.
Consider another size if...
You both like plenty of space, or one of you tosses and turns. We'd recommend the UK king instead, which gives 75cm each; allow at least 2.7m x 2.9m.
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FAQ's
Is the Bodyshape Boost 800 Pocket Ortho UK double big enough for two people?
For most couples, yes. A UK double gives each of you 67.5cm of width, which works well if you both sleep fairly still. If either of you sleeps on your side, bear in mind this mattress is rated firm, and a little extra width won't change that. Couples who spread out tend to prefer the UK king.
What size bedroom do I need for a Bodyshape Boost 800 Pocket Ortho double?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m the comfortable norm. At that larger size you can usually fit a bedside table on each side and still open a wardrobe. In a smaller second bedroom or first flat, check the space around drawers before you commit.
Should a couple choose the UK double or UK king Bodyshape Boost 800?
The UK double is 15cm narrower and 10cm shorter than the UK king, and gives 7.5cm less width each. The UK king needs a room of at least 2.7m x 2.9m. If your bedroom meets that and you value elbow room, size up. If space is tight, the UK double keeps the room usable.
What sheets and duvet fit a Bodyshape Boost 800 Pocket Ortho double?
Standard double sheets fit, and a 200 x 200cm double duvet covers it well. The mattress is 24cm deep, so check that any fitted sheet you buy is deep enough to tuck under comfortably. Double bedding is sold in almost every shop, so replacing it is straightforward.
How big is a UK double mattress in feet and inches?
A UK double measures 4ft 6in x 6ft 3in, which is 135 x 190cm. That length is shared with the UK single and UK small double, so a taller partner who already finds those sizes short won't gain any legroom here. The UK king adds 10cm of length.