SleepSoul Balance 800 Pocket Memory Mattress
Mattress
SleepSoul Balance 800 Pocket Memory Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
23
Layers
2
Layer Details
- Memory Foam. A 2cm top layer that responds to body temperature, which means it softens where you press into it and spreads your weight evenly for soothing pressure relief. It's a slim layer, so expect a gentle cushion rather than a deep sink-in feel.
- Pocket Springs. 800 pocket springs run edge to edge and react independently to your movements, giving personalised support with no roll-together. That independence means you're less likely to be disturbed when a partner shifts in the night.
Layer details from mattressonline.co.uk product page, September 2026.
- Room to spread out alone: At 30cm wider than the UK single, a solo sleeper can turn over, sleep diagonally or starfish without an arm dropping off the side.
- Usable right to the edge: The 800 pocket springs run edge to edge, which means the full 120cm width feels supportive rather than soft and sloping near the sides.
- Fits the tighter bedroom: Being 15cm narrower than the UK double, it can leave enough floor for a door to swing clear or a wardrobe to open fully in a box room.
- Copes with a guest couple: Because the springs move independently, a visiting couple feels a little less of each other shifting, which helps on a short stay.
- Same length as a UK single: Stepping up from a UK single adds width but no length, so a bed moved along the same wall will still clear what it cleared before.
This size suits you if...
You sleep alone and have outgrown a UK single, such as a teenager who now sprawls, but the room cannot give up the floor a UK double would take, or you are kitting out a guest room where a couple stays now and then but nobody sleeps nightly.
Consider another size if...
You share the bed every night and both want room to move. We'd recommend the UK double instead, which gives 67.5cm each and needs at least 2.6m x 2.8m.
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What size room do I need for a SleepSoul Balance 800 small double?
We suggest allowing at least 2.4m x 2.8m for the UK small double. That leaves space to walk around the bed and open drawers. If your room is close to that and has a door opening inwards, measure the swing of the door against the bed's 120cm width before you order.
Is the Balance 800 small double a good upgrade from a single for a teenager?
For many teenagers it is a sensible step. The UK small double is 30cm wider than the UK single yet exactly the same length, so it takes more width from the room but no extra length. That suits a bedroom where the bed runs along one wall and floor space is tight.
Will a Balance 800 small double work in a loft conversion bedroom?
It often suits one better than a UK double, because the UK small double is 15cm narrower, which can leave you enough headroom to stand beside the bed under a sloping ceiling. Check the height at the point where you would get in and out, as the mattress itself is 23cm deep.
Should I choose the Balance 800 in a small double or a double for one person?
If you sleep alone and your room is compact, the UK small double gives plenty of width for one and saves 15cm of floor. The UK double makes more sense if a partner stays regularly; it needs at least 2.6m x 2.8m, against 2.4m x 2.8m for the UK small double.
Is the SleepSoul Balance 800 small double comfortable for a couple on occasional nights?
For a weekend guest couple, yes, as long as nobody expects much personal space. The independent pocket springs reduce the roll-together you get on cheaper open coil guest beds. For a couple sharing nightly, the UK small double will feel cramped, and the UK double gives 67.5cm each.