SleepSoul Heaven 3000 CoolGel Pillow Top Super King Mattress
The SleepSoul Heaven 3000 CoolGel Pillow Top Mattress pairs a Cool Gel foam layer with a pocket spring core and a pillow top, which means a softer surface feel on a medium-firm to firm base.
- Soft pillow top over firm support
- Cool Gel foam disperses heat
- Minimises partner disturbance
£441
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SleepSoul Heaven 3000 CoolGel Pillow Top Mattress
More available sizes
Mattress details
Mattress
SleepSoul Heaven 3000 CoolGel Pillow Top Mattress
Size
Firmness
Medium Firm
Construction
Foam
Gel
Pocket Spring
Rolled
Depth (cm)
30
Layers
3
Layer Details
Pillow top
A 2cm layer of soft foam in the microquilted surface. It gives the top a softer, more cushioned feel without changing the medium to firm rating.
Cool Gel foam
A 3cm Cool Gel foam layer under the pillow top that contours to the body. It also helps disperse heat, so you get shaping with less warmth.
Pocket spring core
1000 individually pocketed springs, with 2000 mini pocket springs added for bounce and comfort. The mini springs reduce motion transfer, so you're less likely to feel a partner move.
Layer details from mattressonline.co.uk product page, October 2026.
Key benefits
- 90cm each for two sharing: Each of you gets the same width as a UK single, which means you can turn over or stretch out without nudging the person next to you.
- Distance plus quieter springs: SleepSoul says the 2000 mini pocket springs reduce motion transfer, and the extra width means a fidgety partner is also physically further away from you.
- Room for a small visitor: When a child climbs in after a bad dream, the UK super king still leaves both adults a usable strip of mattress rather than a precarious edge.
- Cooler with more bodies in the bed: The 3cm Cool Gel foam layer is there to disperse heat, which helps when a child or a large dog adds extra warmth to a shared bed.
- In scale with a large master: In a period bedroom or a spacious new build master, a UK king can look a little lost, while the UK super king fills the room in proportion.
This size suits you if...
You share with a partner who tosses and turns and you want real distance between you, or children and pets regularly end up in your bed. It also suits you if your bedroom is generous enough that a UK king would look undersized.
Consider another size if...
Your bedroom is smaller than our suggested 3m x 2.9m, or the stairs are tight. We'd recommend the UK king instead, which we suggest for rooms of at least 2.7m x 2.9m.
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FAQ's
Is a UK super king SleepSoul Heaven 3000 big enough for two adults and a child?
For occasional night visits, yes. The UK super king gives two adults 90cm each, so a small child can tuck in between you without anyone ending up clinging to the edge. If a child sleeps with you every night as they grow, it will start to feel shared, but no standard UK size gives you more width.
How much bigger is the UK super king than the UK king SleepSoul Heaven 3000?
The UK super king is 30cm wider than the UK king, and both are the same length. Shared between two, that comes to 15cm more each. If your main complaint is a partner's elbows or a dog spreading out, the width is what you gain. Legroom stays exactly the same.
What size bedroom do I need for a UK super king SleepSoul Heaven 3000?
We suggest at least 3m x 2.9m, although around 3.5m x 3.2m feels more comfortable once you add bedside tables and space to walk round. In a loft conversion, measure where the ceiling is high enough to sit up in bed, because the slope often decides which wall the headboard can go against.
Will a UK super king mattress fit up my stairs?
The UK super king measures 180 x 200cm and is 30cm deep, so getting it to the bedroom is the check that catches people out. Measure the tightest landing turn and the bedroom door swing, ask the retailer how it is delivered, then compare the retailers listed on this page. The side handles help with carrying, though not with a narrow corner.
What bedding fits a SleepSoul Heaven 3000 UK super king?
You'll need super king fitted sheets and a 260 x 220cm duvet. The mattress is 30cm deep, so check that the fitted sheet's pocket depth covers it. Super king bedding costs more than king bedding and comes in a narrower range, so if you are sizing up from a smaller bed, factor in replacing your sheets.