SleepSoul Wish 3000 Series Pocket Cool Gel Small Double Mattress
The SleepSoul Wish 3000 Series is a hybrid mattress that pairs pocket springs with cool gel memory foam and a plush pillow top, which means you get contouring comfort with a slightly cooler feel than standard memory foam.
- Plush pillow top eases hips & shoulders
- Cool gel memory foam limits heat
- Suits back & combination sleepers
£399
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SleepSoul Wish 3000 Series Pocket Cool Gel Mattress
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Mattress details
Mattress
SleepSoul Wish 3000 Series Pocket Cool Gel Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Hybrid
Gel
Depth (cm)
30
Layers
3
Layer Details
Pillow Top
An extra layer of plush fillings sewn onto the surface, which means a softer, more cushioned first impression when you lie down. It gives the medium firm core a gentler feel on pressure points like hips and shoulders.
Cool Gel Memory Foam
This foam contours to your body for pressure relief and support, while the gel helps regulate body temperature better than standard memory foam. In practice, you get the hug of memory foam with less of the heat build-up.
Pocket Springs
Each spring sits in its own fabric pocket and moves independently, which means the mattress responds to your body shape rather than pushing back as one unit. That independence also helps reduce disturbance when a partner moves.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Room to sprawl on your own: At 30cm wider than the UK single, the UK small double lets a solo sleeper stretch out or change position freely.
- Fits a tighter room: Being 15cm narrower than the UK double, it can leave you enough clearance for the door to swing open or a wardrobe to stay usable.
- Modest room guidance: We suggest at least 2.4m x 2.8m for the UK small double, compared with 2.6m x 2.8m for the UK double.
- Easier move up from a single: The UK small double is the same length as the UK single, so a growing teenager gains width without the bed pushing further into the room.
- Calmer for the odd shared night: The individually pocketed springs move independently, which means a visiting couple should feel a little less of each other turning over.
- Cooler for a warm, small room: The cool gel memory foam handles heat better than standard memory foam, a small help in a snug bedroom or loft conversion.
This size suits you if...
You sleep alone and want space to spread out, or you have a teenager who has outgrown a single in a room that cannot lose much floor. It also suits a guest room or loft conversion where couples stay occasionally rather than every night.
Consider another size if...
Two of you will share the bed every night. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m for the UK double.
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FAQ's
Is the SleepSoul Wish 3000 in a UK small double a good upgrade from a single for a teenager?
For most teenagers, yes. The UK small double is 30cm wider than the UK single but the same length, so the gain is all in width. We suggest at least 2.4m x 2.8m for the UK small double, against 2.1m x 2.8m for the UK single, so check the room can spare the extra before ordering.
Will a Wish 3000 small double fit in a loft conversion?
It is often a sensible pick for a loft conversion, where sloping ceilings leave little standing room beside a wider bed. Allow at least 2.4m x 2.8m for the UK small double. If your usable floor falls short of that, measure where you can actually stand upright, because that decides whether you can get in and out comfortably.
Can a couple share the SleepSoul Wish 3000 UK small double?
For an occasional stay, yes, which makes the UK small double a practical guest room bed. The pocket springs help limit disturbance when one person moves. For nightly sharing it will feel a little tight, and the UK double, which gives 67.5cm each for two sharing, is the better fit.
Should one person choose the Wish 3000 in a small double or a double?
If your room is compact, the UK small double gives a solo sleeper plenty of space while being 15cm narrower than the UK double. Both are the same length. Choose the UK double only if you have at least 2.6m x 2.8m and want extra width, or expect a partner to stay regularly.
Is the SleepSoul Wish 3000 small double long enough if I'm tall?
The UK small double is 190cm long, the same as the UK single and UK double. If you are tall and your feet reach the end of a standard bed, the UK king is 10cm longer, though it also needs more room: we suggest at least 2.7m x 2.9m for the UK king.