SleepSoul Space 3000 Mattress
Mattress
SleepSoul Space 3000 Mattress
Size
Firmness
Construction
Depth (cm)
36
Layers
5
Layer Details
- Top Layer. A cashmere knitted fabric that feels soft and slightly plush the moment you lie down. It's breathable too, which helps stop heat building up at the surface.
- Memory Foam. 3cm of memory foam that moulds to your shape, which means pressure points like hips and shoulders get gentle relief. It's a modest layer, so you get contouring without the stuck-in-the-mattress feeling deeper memory foam can create.
- High-Density Foam. A 3cm layer of high-density foam that responds as you move. This makes changing position easier than on all-memory-foam designs.
- Soft Foam. 2cm of softer foam adds a touch of extra cushioning between you and the springs. It's there to keep the medium feel from tipping into firmness.
- Springs. 1000 pocket springs work alongside 2000 mini springs, giving targeted support across the whole mattress. Because each spring moves independently, your partner's movement is less likely to travel across the bed.
Layer details from sleepsoul.co.uk product page, September 2026.
- More room each: You get 75cm of width per sleeper, which means enough space to turn over without landing in your partner's half.
- Length for taller sleepers: At 200cm long, or 6ft 6in, this size is 10cm longer than the UK double, so a tall partner can stretch out fully.
- Less disturbance across a wider bed: The 1000 pocket springs move independently, and the extra width puts more distance between you, so an early riser is less likely to wake the other.
- Space for changing positions: If pregnancy or recovery means you're propping pillows or shifting position often, the wider surface gives you room to do so without crowding your partner.
- A sensible middle step: You gain real space over a UK double while needing a smaller room than the UK super king, which we suggest needs at least 3m x 2.9m.
This size suits you if...
You share the bed every night and have started to feel squeezed on a UK double, or one of you is over six foot and keeps running out of length. It also suits you if your working hours differ and you want a little more distance between you when one of you gets up hours before the other.
Consider another size if...
Your bedroom is smaller than our suggested 2.7m x 2.9m once wardrobes are in. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
Is the SleepSoul Space 3000 UK king big enough for two people?
For most couples, yes. The UK king gives 75cm each for two people sharing, which is 7.5cm more each than the UK double. That extra margin is what stops elbows and knees drifting into your partner's side. If you also share with a dog that sprawls, you may still want more room than this.
Is a UK king Space 3000 long enough if you're over six foot?
It should be for most tall sleepers. The UK king measures 200cm, or 6ft 6in, which is 10cm longer than the UK double. That extra length gives you room for your pillow and your feet at the same time, rather than choosing between them.
Will I feel my partner moving on the SleepSoul Space 3000 king size?
Less than on a narrower bed. The 1000 pocket springs respond individually, so movement doesn't travel far across the surface, and the UK king's 75cm each adds physical distance too. If one of you rises early, the other is less likely to be woken, although no spring mattress stops movement completely.
Should I get the Space 3000 in UK king or UK super king?
Choose the UK king if your room is at least 2.7m x 2.9m but short of the 3m x 2.9m we suggest for the UK super king. The UK super king is 30cm wider and gives 15cm more each, at the same length. If you both sleep starfished or share with a pet, the UK super king is the better fit.
Will a SleepSoul Space 3000 UK king fit in a new build master bedroom?
Measure after the wardrobes are in, because new build rooms often feel smaller once furnished. We suggest at least 2.7m x 2.9m for the UK king, with 3.2m x 3.2m giving comfortable room to move. At 36cm deep, this mattress also sits high on a frame, so it can look larger in a tight space.