SleepSoul Bliss Memory Pocket 1500 Pillowtop Super King Mattress in a Box
The SleepSoul Bliss Memory Pocket 1500 is a firm hybrid mattress in a box, combining 1500 pocket springs with layers of memory foam and soft foam beneath a sewn-in pillow top.
- Firm support without a hard feel
- Eases pressure at hips & shoulders
- 10-year guarantee
£434
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SleepSoul Bliss Memory Pocket 1500 Pillowtop Mattress in a Box
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Mattress details
Mattress
SleepSoul Bliss Memory Pocket 1500 Pillowtop Mattress in a Box
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Hybrid
Rolled
Memory Foam
Depth (cm)
31
Layers
6
Layer Details
Pillow-top layer
A soft pillow top of plush filling sits on the surface. This gives extra cushioning before you reach the firmer layers below.
Soft foam
A 5cm layer of soft foam adds a cushioned feel. It works with the pillow top to soften that firm overall rating.
Memory foam
This 3cm layer contours to your shape, which means pressure points are relieved as you settle in. It also acts as a transition layer, giving a controlled sink and minimising movement.
Hard foam
A 2cm hard foam layer distributes your weight consistently. It bridges the softer comfort layers and the springs beneath.
Pocket springs
1500 individual pocket springs conform to your body, supporting you where you need it most. Because each spring moves on its own, the design helps prevent the roll-together effect with a partner.
Base
A non-slip fabric base keeps the mattress steady on your bed frame. A small detail, but it stops the annoying gradual slide.
Layer details from sleepsoul.co.uk product page, September 2026.
Key benefits
- 90cm each for two sharing: Each of you gets the width of a UK single, which means an elbow or a turn in the night is far less likely to reach the other person.
- 15cm more each than the UK king: The UK super king is 30cm wider than the UK king at the same length, so the extra space goes entirely into width, where restless sleepers need it.
- A firm core under a wide surface: The 1500 pocket springs keep the whole 180cm width supportive, so a child or a large dog lying near the edge has a steady surface rather than a soft slope.
- Movement stays on one side: Individually moving springs and a 3cm memory foam layer limit how far a shift in position travels, and at this width that motion has much further to go.
- Stays put on a big frame: The non-slip fabric base holds the mattress in place, which helps when two adults, a child and perhaps a pet are all climbing in and out.
This size suits you if...
You share with a partner who turns and kicks all night and you want real distance between you, or your children and dogs regularly end up in the bed and everyone still needs space. Your bedroom also comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom is under 3m x 2.9m, or you mostly sleep alone. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
Is the SleepSoul Bliss 1500 super king big enough for two adults and a child?
For occasional night visits, yes. Two adults get 90cm each, and a small child can usually fit between you without anyone ending up on the edge. The firm pocket spring core keeps the middle supportive. A child who joins you every night will feel more of a squeeze, although this is as wide as mainstream UK sizes go.
Will a super king SleepSoul Bliss fit in a loft conversion bedroom?
Only if you have a full-height wall for the headboard and enough floor to clear our suggested 3m x 2.9m. The mattress is 180cm wide and 200cm long, and it's 31cm deep, so a low sloping ceiling over the sleeping side can make sitting up awkward. Measure where the headroom actually starts rather than the total floor area.
SleepSoul Bliss super king or king for a restless partner?
If disturbance is the main problem, the UK super king is the better choice. It gives 15cm more each than the UK king at the same 200cm length. The pocket springs dampen movement at either size, but physical distance does more than any comfort layer when someone flings an arm out.
Can a large dog share the SleepSoul Bliss super king?
Yes, with care. At 180cm wide there's space for a big dog along the foot or one side without pushing either of you over. The firm feel means the dog won't sink into a hollow. Claws and paws can wear a pillow top over time, so a thick protector is sensible.
What should I check before ordering a SleepSoul Bliss super king?
Measure three things: whether your door opens fully with a 180cm wide bed in place, the space to walk round both sides, and the turns on your landing when you move it after unboxing. Budget for super king sheets and a 260 x 220cm duvet too, since your existing bedding won't fit.