SleepSoul Bliss 800 Super King Mattress
The SleepSoul Bliss 800 is a pocket spring mattress with 800 individual springs, which means each spring moves on its own so you feel less of your partner's tossing and turning.
- Plush pillow-top comfort
- Springs that move with you
- Medium feel suits most sleepers
£475
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SleepSoul Bliss 800 Mattress
More available sizes
Mattress details
Mattress
SleepSoul Bliss 800 Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Depth (cm)
Layers
2
Layer Details
Pillow-top
A soft pillow-top with plush fillings sits at the surface. It adds an extra layer of cushioning under your shoulders and hips, so the mattress feels softer to lie on than the medium firmness alone suggests.
800 pocket springs
Below the pillow-top, 800 pocket springs conform to your body and support you where you need it most. Because each spring works on its own, the mattress follows your shape rather than moving as one block.
Layer details from mattressman.co.uk and mynextmattress.co.uk product pages, October 2026.
Key benefits
- 90cm each for two: Sharing the UK super king gives each of you 90cm, which means 15cm more each than the UK king and room to turn over without ending up nose to nose.
- Distance plus independent springs: With a genuinely restless partner, space matters more than any comfort layer, and the 800 pocket springs help further by moving individually rather than as one unit.
- Space for small night-time visitors: When a child pads in at 3am, the extra width means the adults keep a usable share of the bed instead of clinging to the edges.
- Dogs on the bed as routine: If a large dog sleeps with you most nights, 6ft of width gives it somewhere to settle without pushing one of you towards the floor.
- The right scale for a big room: In a large master or a period bedroom with high ceilings, a UK super king fills the space properly where a UK king can look slightly lost.
This size suits you if...
You share with a partner whose tossing and turning keeps waking you, and your children or dog regularly end up in the bed by morning. Your bedroom should also comfortably clear our suggested minimum of 3m x 2.9m.
Consider another size if...
Your room falls short of our suggested 3m x 2.9m, or your landing has tight turns. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
SleepSoul Bliss 800 super king or king for a restless partner?
If movement is what wakes you, the UK super king is the better bet. It is 30cm wider than the UK king at the same length, giving 15cm more each, and that gap works alongside the independently moving springs. Yes, you need more floor space, but we suggest at least 2.7m x 2.9m for the UK king against 3m x 2.9m here.
Can a couple and a child sleep on the SleepSoul Bliss 800 super king?
It is the most realistic size for it. The 180cm width leaves the adults a proper share when a child climbs in, so neither of you has to give up and move to the child's room. The individual springs also mean a small wriggler is less likely to jolt whoever is sleeping furthest away.
Will a super king mattress fit in a loft conversion bedroom?
Look at where the ceiling slopes before you look at floor area. We suggest at least 3m x 2.9m, and ideally closer to 3.5m x 3.2m, but in an attic room the useful space is where you can stand up on either side. Putting the headboard under the low side often works, provided you can still make the bed.
What should I measure before ordering the SleepSoul Bliss 800 in super king?
Start with the 180 x 200cm footprint, then check the door swing into the room and every turn on the landing. SleepSoul doesn't publish a depth or weight for this mattress, so ask the retailer for the delivered dimensions before you order. Budget for super king bedding too, including a 260 x 220cm duvet.
Is the SleepSoul Bliss 800 super king big enough for two people and a large dog?
For most couples this is the size that makes it workable night after night. Each of you gets 90cm, and the dog usually settles at the foot or in the gap between you. On a UK double you would each have 67.5cm before the dog arrives, which is 22.5cm less each than the UK super king.