Bodyshape Boost 800 Pocket Double Mattress
The Bodyshape Boost 800 Pocket Mattress pairs 800 individually pocketed springs with a Reflex foam comfort layer, which means you get a medium feel with some cushioning on top and springs that move independently below.
- Medium feel for most sleepers
- Reflex foam cushioning on top
- Breathable knitted cover
£219
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Bodyshape Boost 800 Pocket Mattress
More available sizes
Mattress details
Mattress
Bodyshape Boost 800 Pocket Mattress
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Rolled
Depth (cm)
24
Layers
4
Layer Details
Microquilted comfort layer
A microquilted top filled with Reflex foam and cosy polyester fibres. It adds light cushioning over the springs, so the surface feels medium rather than hard.
Polyester fibre layer (above spring unit)
Dense polyester fibres sit above the spring unit. They add padding between you and the springs, so you feel the cushioning rather than the coils.
Pocket spring unit
800 individually pocketed springs, with the pockets secured together to form a single unit. Each spring works on its own, so the support follows your body.
Polyester fibre layer (below spring unit)
Dense polyester fibres sit below the spring unit. They form the underside of the mattress, between the springs and your bed base.
Layer details from mattressonline.co.uk product page, November 2026.
Key benefits
- Room for two, space left over: At 135cm wide, a UK double sits comfortably in a room of at least 2.6m x 2.8m, which we suggest as the minimum for this size.
- Springs that respond to each sleeper: The 800 pocketed springs each work on their own, which means the support follows your body on your side of the bed and your partner's on theirs.
- A middle-ground feel for two people: It's rated medium, which gives a sensible meeting point when one of you would otherwise lean towards a softer bed and the other towards a firmer one.
- A cooler cover for shared warmth: Two bodies in a UK double generate a fair bit of heat, and the breathable knitted cover helps if one of you tends to warm up overnight.
- Bedding that's easy to replace: Double sheets and a 200 x 200cm double duvet fit this mattress, so kitting out the bed is simple when you're furnishing a whole home at once.
This size suits you if...
You share the bed with a partner most nights and want a recognised couples' size, your bedroom is around 3m x 3m or a little smaller, and you'd still like room for bedside tables on both sides plus a wardrobe without squeezing past the bed.
Consider another size if...
You're both tall or broad and already feel cramped at 67.5cm each. We'd recommend the UK king instead, which gives 75cm each and is 10cm longer; allow at least 2.7m x 2.9m for it.
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FAQ's
Is the Bodyshape Boost 800 Pocket UK double big enough for two adults?
For most couples of average build, yes. The UK double gives you 67.5cm each across its 135cm width, and it's 190cm long. If either of you is tall or you sleep spread out, the UK king gives 75cm each and adds 10cm of length, which may feel noticeably roomier.
What size bedroom do I need for a Bodyshape Boost 800 Pocket double?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m feeling comfortable in day-to-day use. At the smaller end, check you can still fit bedside tables on both sides and open wardrobe doors fully before you commit.
Bodyshape Boost 800 Pocket UK double or UK king for a couple?
The UK king is 15cm wider and 10cm longer than the UK double, giving each of you 7.5cm more width. It also needs more floor: we suggest at least 2.7m x 2.9m for the UK king. If your room is tight, the UK double keeps space around the bed.
Is the UK small double Bodyshape Boost 800 Pocket enough for two people?
It can work for occasional sharing, such as a guest room for visiting couples, but for nightly use the UK double is 15cm wider at the same length. We suggest at least 2.4m x 2.8m for the UK small double, so it suits smaller rooms better.
Will a Bodyshape Boost 800 Pocket double fit up narrow stairs?
Measure first. The UK double is 135 x 190cm and 24cm deep, so check turning stairs in older terraces and tight landings in new builds against those figures. Once you're confident it'll get up to the bedroom, compare the retailers listed on this page.