SleepSoul Comfort 800 Pocket Mattress
Mattress
SleepSoul Comfort 800 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
23
Layers
2
Layer Details
- Reflex Foam. A 2cm layer of high-density Reflex foam sits at the top, adapting to your shape for enhanced support. It's a thin comfort layer, so expect a supportive feel rather than deep cushioning.
- Pocket Springs. Beneath the foam are 800 individual pocket springs, each moving independently for pressure relief and personalised support. Because the springs respond separately, you're less likely to feel a partner shifting about.
Layer details from mattressonline.co.uk product page, September 2026.
- Room to sprawl on your own: At 30cm wider than the UK single, you can sleep diagonally or stretch an arm out without it dropping off the side.
- Fits where a double feels tight: Being 15cm narrower than the UK double, it can leave you the gap you need for a wardrobe door or a bedside table.
- Calmer when someone stays over: The 800 springs are individually pocketed, which means a partner turning over on a shared night is less likely to jolt you awake.
- No extra length to find: It's the same length as the UK single, so moving up from one only asks your room for extra width, not extra floor from head to foot.
- Supportive rather than sinky: With only 2cm of Reflex foam on top, the feel is fairly firm and springy, which suits back and front sleepers more than those after a soft, cushioned surface.
This size suits you if...
You sleep alone and a single has started to feel cramped, or your room can take a double bed but a 4ft 6in frame would crowd it, and a partner or guest only shares it now and then.
Consider another size if...
You share the bed every night and both want room to move. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m for it.
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Is the SleepSoul Comfort 800 small double big enough for a couple?
For the occasional weekend, yes. The pocket springs move independently, so one person shifting about is less likely to disturb the other. For every night, two adults will probably find the UK small double a squeeze. The UK double gives 67.5cm each for two sharing and is a more comfortable choice for a nightly couple.
What size bedroom do I need for a small double mattress?
We suggest at least 2.4m x 2.8m for a UK small double. By comparison, we suggest at least 2.6m x 2.8m for the UK double, so if your room falls between the two, the UK small double is the one that leaves you space to walk round the bed and open drawers.
Is the SleepSoul Comfort 800 a good upgrade from a single for a teenager?
It suits a teenager who has outgrown a UK single well. The UK small double is 30cm wider but the same length, so it only needs extra width in the room. The medium firm, springy feel gives growing backs steady support, although a lightweight teen who sleeps on their side may find it slightly firm at the shoulders.
Will I feel the springs at the edge of a narrower mattress?
Across verified owner reviews, some people mention feeling springs near the edges of the Comfort 800. On a UK small double you use more of the width than you would on a bigger bed, so you may end up near the edge more often. If you regularly sit on the side to dress, bear this in mind.
Does a SleepSoul small double fit in a loft conversion bedroom?
Often, yes. At 4ft x 6ft 3in, the UK small double leaves more standing room beside the bed than a UK double under a sloping ceiling. The mattress is 23cm deep, so it sits fairly low on a standard frame, which helps where headroom is tight. Measure the full-height section of the floor before you order.