SleepSoul Bliss Memory Pocket 1500 Pillowtop Small Double Mattress in a Box
The SleepSoul Bliss Memory Pocket 1500 is a firm hybrid mattress in a box, combining 1500 pocket springs with layers of memory foam and soft foam beneath a sewn-in pillow top.
- Firm support without a hard feel
- Eases pressure at hips & shoulders
- 10-year guarantee
£350
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SleepSoul Bliss Memory Pocket 1500 Pillowtop Mattress in a Box
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Mattress details
Mattress
SleepSoul Bliss Memory Pocket 1500 Pillowtop Mattress in a Box
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Hybrid
Rolled
Memory Foam
Depth (cm)
31
Layers
6
Layer Details
Pillow-top layer
A soft pillow top of plush filling sits on the surface. This gives extra cushioning before you reach the firmer layers below.
Soft foam
A 5cm layer of soft foam adds a cushioned feel. It works with the pillow top to soften that firm overall rating.
Memory foam
This 3cm layer contours to your shape, which means pressure points are relieved as you settle in. It also acts as a transition layer, giving a controlled sink and minimising movement.
Hard foam
A 2cm hard foam layer distributes your weight consistently. It bridges the softer comfort layers and the springs beneath.
Pocket springs
1500 individual pocket springs conform to your body, supporting you where you need it most. Because each spring moves on its own, the design helps prevent the roll-together effect with a partner.
Base
A non-slip fabric base keeps the mattress steady on your bed frame. A small detail, but it stops the annoying gradual slide.
Layer details from sleepsoul.co.uk product page, September 2026.
Key benefits
- Room to spread out on your own: At 30cm wider than the UK single, there's space to lie on your side with your knees drawn up, or stretch out flat on the firm, supportive surface.
- Fits a compact double bedroom: Because it's 15cm narrower than the UK double, you may keep enough clearance to open a wardrobe or walk round the bed in a smaller room.
- Fine for a couple now and then: Two people can share for a weekend, and the 1500 individually pocketed springs mean one person turning over is less likely to jolt the other.
- Useful under a sloping loft ceiling: In a loft conversion, the narrower footprint lets the bed sit under the slope while you keep the full-height part of the room for standing and dressing.
- Check your sheets for depth: Fitted sheets for a 4ft bed are easy to find, but make sure yours are deep enough to tuck properly around a 31cm mattress.
This size suits you if...
You sleep alone and have outgrown a UK single, or you're furnishing a compact double bedroom or guest room where a UK double would leave too little space to move and a couple stays over only now and then.
Consider another size if...
Two of you will sleep on it every night rather than occasionally. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; we suggest a room of at least 2.6m x 2.8m for the UK double.
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FAQ's
Is the SleepSoul Bliss 1500 UK small double a good upgrade for a teenager?
If your teenager has outgrown a single, yes, as long as the room can take it. The UK small double is 30cm wider than the UK single, and we suggest at least 2.4m x 2.8m for the UK small double against 2.1m x 2.8m for the UK single. The firm feel with a cushioned pillow top suits a sleeper wanting support without a hard surface.
Will a SleepSoul Bliss 1500 small double fit in a box room?
It can, and it's often a better fit than a UK double. We suggest a room of at least 2.4m x 2.8m for the UK small double, while we suggest at least 2.6m x 2.8m for the UK double. That 15cm of extra width on the UK double can be the difference between a door that opens freely and one that catches.
Can a couple sleep on the SleepSoul Bliss 1500 small double in a guest room?
For the odd night or a weekend visit, yes. The independently moving pocket springs help limit disturbance when one of you shifts. For nightly sharing, the UK double gives 67.5cm each for two sharing, so we'd point regular couples towards the UK double instead.
SleepSoul Bliss 1500 small double or double for one person?
If you sleep alone and your room is tight, the UK small double gives you plenty of width while leaving more floor free. The UK double is 15cm wider and the same length, so you'd gain width only, and we suggest a larger room of at least 2.6m x 2.8m for the UK double.
Is the SleepSoul Bliss 1500 UK small double long enough for a tall person?
The UK small double is 190cm long, the same length as the UK single and the UK double. If you're tall and your feet reach the end, the UK king is 10cm longer, although we suggest at least 2.7m x 2.9m for the UK king, so check your room first.