SleepSoul Heaven Gel Pocket 2000 Super King Mattress in a Box
The SleepSoul Heaven Gel Pocket 2000 is a mattress in a box, which means it arrives compressed and rolled for easier delivery and manoeuvring up the stairs.
- Soft-to-medium feel for gentle comfort
- Coolgel foam slows heat build-up
- Pocket springs for steady support
£345.89
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SleepSoul Heaven Gel Pocket 2000 Mattress in a Box
More available sizes
Mattress details
Mattress
SleepSoul Heaven Gel Pocket 2000 Mattress in a Box
Size
Firmness
Medium Soft
Construction
Pocket Spring
Rolled
Gel
Depth (cm)
Layers
5
Layer Details
Soft foam top layer
A 2cm layer of soft foam sits under the quilted stretch knit cover. It spreads your weight evenly, which adds a gentle cushioning to the surface.
Coolgel foam
3cm of Coolgel foam, a temperature-regulating layer that slows down heat build-up in the mattress. If you tend to sleep warm, this is the layer that should help.
Mini pocket springs
A comfort layer of 1200 mini tablet pocket springs sits above the core. Being smaller, they add a softer, more responsive feel closer to the surface.
Pocket spring core
The core holds 800 standard size pocket springs, each in its own cloth sleeve. Each spring works on its own, which gives the mattress its underlying support.
Non-slip base fabric
The underside has a non-slip fabric. It helps the mattress stay put on your bed base, so it is less likely to shuffle about.
Layer details from sleepsoul.co.uk and archerssleepcentre.co.uk product pages, October 2026.
Key benefits
- The most width in the range: At 30cm wider than the UK king, the UK super king is the roomiest way to buy this mattress, which means nobody has to cling to the edge.
- Distance from a restless partner: You each get 90cm, and physical distance from someone who kicks or turns all night tends to help more than any change in comfort layer.
- Space for small visitors: When a child climbs in after a bad dream, a 6ft x 6ft 6in bed leaves the adults with a realistic share of the mattress rather than a thin strip.
- Room for dogs that sleep on the bed: If a large dog settles across the foot of the bed most nights, the extra width gives it somewhere to lie without pinning your legs.
- Arrives rolled and compressed: A flat super king is awkward on a tight landing turn, so a rolled mattress in a box is a real help on the way to an upstairs bedroom.
- Suits a large master bedroom: In a big period room or a spacious master, a UK super king fills the floor in proportion, where a UK king can look slightly lost.
This size suits you if...
You share the bed every night and one of you is a restless sleeper, or children and pets regularly end up in with you. It also suits you if your bedroom comfortably clears our suggested minimum of 3m x 2.9m and you want the widest version of this mattress.
Consider another size if...
Your bedroom falls short of 3m x 2.9m, or the bed has to sit under a sloping loft ceiling. We'd recommend the UK king instead, for which we suggest at least 2.7m x 2.9m.
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FAQ's
How much more room does the SleepSoul Heaven Gel Pocket 2000 super king give than the king?
The UK super king is 30cm wider than the UK king, and the two are the same length. For a couple, that means 15cm more each: the UK king gives 75cm per person, while the UK super king gives 90cm. The gain is all in width, so taller sleepers won't notice a difference.
Is a super king mattress worth it if my partner is a restless sleeper?
For many couples, yes. With 90cm each on the UK super king, a partner who turns over repeatedly is simply further away from you. Compared with the UK double, you each get 22.5cm more. SleepSoul doesn't publish detail on how well this mattress limits movement, so the extra distance is the dependable benefit here.
Can two adults and a child fit on a SleepSoul super king?
For the occasional night, a 180 x 200cm UK super king is the most practical size for it, as the adults start with 90cm each rather than the 75cm a UK king offers. It won't feel spacious with three of you, but you are far less likely to end up perched on the edge.
Will a super king fit in a loft conversion bedroom?
Only if the room is large enough and the slope allows it. We suggest at least 3m x 2.9m for a UK super king, with around 3.5m x 3.2m feeling comfortable. In a loft, the sloping ceiling often dictates which wall the headboard goes against, so measure the full-height floor area rather than the whole room.
Is the super king or king better if our dog sleeps on the bed?
If a large dog shares the bed most nights, the UK super king makes more sense, since its extra 30cm of width over the UK king gives the dog somewhere to lie. Before buying, check your door swing and landing turns, and budget for a 260 x 220cm duvet and super king sheets.