SleepSoul Balance 800 Mattress
Mattress
SleepSoul Balance 800 Mattress
Size
Firmness
Construction
Depth (cm)
Layers
Layer Details
- Pocket springs. 800 pocket springs individually react to your natural sleeping position, which means pressure is eased where you need it rather than across the whole surface. They're spread edge to edge, so you can use the full width of the mattress without a noticeable drop-off at the sides.
Layer details from mattressman.co.uk product page, September 2026.
- 75cm each when you share: Two people sharing a UK king get 75cm each, 7.5cm more per person than the UK double, which means fewer knees and elbows meeting in the night.
- Extra length for taller partners: At 200cm (6ft 6in), the UK king is 10cm longer than the UK double, so a taller partner is less likely to end up with their feet at the very end.
- Less disturbance from an early riser: The 800 pocket springs move independently, and the extra width puts more distance between you, so a partner who gets up hours earlier is less likely to wake you.
- Support right out to the sides: The springs run edge to edge, which means you can use the outer part of your 75cm without feeling the side dip away beneath you.
- A modest step up in floor space: We suggest a room of at least 2.7m x 2.9m for the UK king, slightly more than the 2.6m x 2.8m we suggest for the UK double.
This size suits you if...
You share the bed every night and keep waking when your partner turns over, one of you is approaching six foot and tired of feet reaching the end, or your working hours differ and one of you gets up well before the other.
Consider another size if...
Your bedroom falls short of our suggested 2.7m x 2.9m once wardrobes are in, or you sleep alone. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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Is the SleepSoul Balance 800 UK king long enough for a tall sleeper?
The UK king measures 200cm, or 6ft 6in, which is 10cm longer than the UK double. If one of you is approaching 6ft, that extra length is often the real reason to move up, more than the added width.
How much room does each person get on a SleepSoul Balance 800 UK king?
Sharing a UK king gives you 75cm each. On the UK double you would have 67.5cm each, so the UK king gives each of you 7.5cm more. Because the springs run edge to edge, you can make use of that width right to the side.
Will I feel my partner move on the Balance 800 king size?
Less than on a smaller size, most likely. The 800 pocket springs respond individually rather than as one connected unit, and the UK king adds width between you. If your partner gets up long before you, the combination should cut down on being woken, although no spring mattress removes movement completely.
Does the SleepSoul Balance 800 come in a UK super king?
No. The Balance 800 comes in UK single, UK small double, UK double and UK king, so the UK king is the widest option. If you need more than 75cm each, you'd have to look at a different mattress.
Balance 800 UK double or UK king for a smaller bedroom?
We suggest at least 2.7m x 2.9m for the UK king and 2.6m x 2.8m for the UK double. New build master bedrooms can feel smaller than expected once fitted wardrobes go in, so measure the clear floor space before you choose the UK king.