Bodyshape Boost 800 Pocket 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
£189
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The Bodyshape Boost 800 Pocket is an affordable pocket spring mattress, 24cm deep and rated medium. A microquilted top with Reflex foam and polyester fibres sits over 800 pocket springs, so it suits sleepers who want a middle-of-the-road feel. It comes in a UK single, UK small double, UK double, UK king and UK super king. Mattress Online offers a 100-night comfort trial, and Bodyshape gives a 1-year guarantee.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
24
Number of Layers
4
Trial Period (nights)
100
Warranty (years)
1
Price Range
£189 to £259
Best Sleeping Position(s)
Back Sleeping
Combination Sleeping
Side Sleeping
Certifications
BS 7177
Assessed from Bodyshape's published specification for this mattress, captured November 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
A medium feel is the safest starting point for many sleepers, and this one gives you that with a layer of Reflex foam and soft polyester fibres on top for a little cushioning. Underneath, 800 individually pocketed springs are secured together as one unit, so the base is built from separate springs rather than a single open coil. The knitted cover is breathable, which helps if you tend to warm up in bed. It suits most back and side sleepers of average build, although the 24cm depth is slimmer than many pocket spring mattresses.
Key features & 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.
Best suited for?
Side sleepers
A microquilted top with Reflex foam and polyester fibres adds light cushioning over the springs, which gives a medium surface that suits average-build side sleepers.
Back sleepers
The medium feel and 800 individually pocketed springs mean each spring works on its own, so support follows your body as you lie on your back.
Warm sleepers
The knitted cover is breathable, which helps if you tend to warm up in bed and want a cooler feel overnight.
Budget buyers
This is an affordable pocket spring mattress that still gives you 800 springs, a foam and fibre comfort layer and a 100-night trial.
If you prefer sleeping on a firm mattress, this might not be the best choice, as it's rated medium. Anyone who wants a deep, plush surface may also find the 24cm depth and simple comfort layer fairly modest. It can't be flipped, so you're limited to rotating it top to toe seasonally.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Bodyshape Boost 800 Pocket Mattress
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FAQ's
How firm is the Bodyshape Boost 800 Pocket?
It's rated medium, with no numeric firmness score published. That suits most back and side sleepers, but if you want a firm, very supportive surface, a firmer mattress will serve you better.
What sizes does the Bodyshape Boost 800 Pocket come in?
It comes in a UK single, UK small double, UK double, UK king and UK super king. There's no UK small single, so very narrow bed frames will need a different mattress.
How deep is the Bodyshape Boost 800 Pocket?
It's 24cm deep, with a tolerance of plus or minus 2cm on dimensions. That's a fairly slim profile, so check it sits well with your bed frame and bedding.
How many springs does the Bodyshape Boost 800 Pocket have?
It has 800 individually pocketed springs, secured together to form a single unit. Bodyshape doesn't state which size that count applies to, so treat it as a general guide.
Does the Bodyshape Boost 800 Pocket come with a trial?
Mattress Online offers a 100-night comfort trial, but you need to buy a mattress protector from them to be eligible. Bodyshape also gives a 1-year guarantee, so check its care and guarantee terms.
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