SleepSoul Cloud 800 Pocket Memory King Size Mattress
The SleepSoul Cloud 800 is a medium-feel hybrid that pairs memory foam with pocket springs beneath a soft pillow top.
- Plush top moulds to your body
- Minimises partner disturbance
- Suits most sleeping positions
£305
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SleepSoul Cloud 800 Pocket Memory Mattress
More available sizes
Mattress details
Mattress
SleepSoul Cloud 800 Pocket Memory Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Hybrid
Memory Foam
Depth (cm)
32
Layers
3
Layer Details
Pillow Top
An extra layer of plush filling sewn onto the surface, which means a soft, cushioned feel the moment you lie down. It's the layer that gives the mattress its cloud-like first impression.
Memory Foam
Memory foam moulds to your body, which means pressure points like hips and shoulders get cradled rather than pushed against. It also adds a supportive, contouring quality beneath the softer top.
Pocket Springs
The King size contains 800 individually pocketed springs, each in its own fabric pocket so they move independently. In practice that means better motion isolation and support that responds to where you actually need it.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Room to roll over: Each of you gets 75cm of width, which is 7.5cm more each than the UK double, so shifting position at night rarely means nudging your partner.
- Length for taller sleepers: At 200cm the UK king is 10cm longer than a UK double, so a partner over six foot can stretch out without their feet meeting the end.
- Fewer disturbed early starts: The pocket springs move independently, and the wider surface adds a little distance between you, so a partner leaving hours before you is less likely to wake you.
- Less floor space than a super king: We suggest at least 2.7m x 2.9m for the UK king, compared with 3m x 2.9m for the UK super king.
- Straightforward bedding: Look for king sheets and a 230 x 220cm king duvet, which is wide enough that one of you is less likely to wake up uncovered.
This size suits you if...
You share the bed every night and a UK double has started to feel cramped, or one of you is up and out long before the other. It also suits you if a partner over six foot keeps finding their feet at the very end of the mattress.
Consider another size if...
Your bedroom falls short of our suggested 2.7m x 2.9m once the wardrobes are in. The UK double would suit you better, and we suggest at least 2.6m x 2.8m for it.
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FAQ's
Is the SleepSoul Cloud 800 UK king long enough for someone over 6ft?
The UK king is 200cm long, or 6ft 6in, which is 10cm longer than the UK double. For a partner over six foot that extra length is often the real reason to upgrade, because it gives their feet room at the end of the mattress rather than more width.
Will I feel my partner move on a SleepSoul Cloud 800 king size?
Less than on a smaller bed, most likely. The pocket springs move independently, and in a UK king each of you has 75cm of width, so there is a little more space between you. If one of you gets up well before the other, that combination helps limit the disturbance.
SleepSoul Cloud 800 UK king or UK super king for a couple?
The UK super king gives 90cm each, so the UK king gives 15cm less each. Both are the same length. The UK super king needs more room, though: we suggest at least 3m x 2.9m, against 2.7m x 2.9m for the UK king. If floor space is tight, the UK king is the easier fit.
Is upgrading from a double to the SleepSoul Cloud 800 king worth it?
If you share every night, it usually is. The UK double gives 67.5cm each, while the UK king gives 75cm each, 7.5cm more per person. It also adds 10cm of length. Check your room first: we suggest at least 2.7m x 2.9m for the UK king.
Will a SleepSoul Cloud 800 king fit in a new build master bedroom?
Measure after the wardrobes and bedside tables are in place, because new build rooms often feel smaller once furnished. Allow at least 2.7m x 2.9m for the UK king, with 3.2m x 3.2m giving comfortable space to walk around. The 32cm depth also makes the bed look more substantial in a compact room.