SleepSoul Heaven Cool Gel 3000 Pocket Pillowtop King Size Mattress
The SleepSoul Heaven Cool Gel 3000 Pocket Pillowtop Mattress pairs a plush pillow top with a CoolGel foam layer, which means a softer-feeling surface that helps disperse heat on a medium firm base.
- CoolGel foam disperses heat
- Plush pillow top cushioning
- Turning handles for easy rotating
£545
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SleepSoul Heaven Cool Gel 3000 Pocket Pillowtop Mattress
More available sizes
Mattress details
Mattress
SleepSoul Heaven Cool Gel 3000 Pocket Pillowtop Mattress
Size
Firmness
Medium Firm
Construction
Foam
Gel
Pocket Spring
Rolled
Depth (cm)
30
Layers
3
Layer Details
Pillow top
A plush pillow top with 2cm of soft foam beneath the surface. It gives a cushioned, softer-feeling top without changing the medium firm rating.
CoolGel foam
A 3cm CoolGel layer that contours gently to your body and disperses heat. That means pressure-relieving comfort with less heat build-up.
Pocket spring core
1000 individually pocketed springs with up to 2000 mini pocket springs. Each spring moves on its own, which gives a supportive base that follows your shape.
Layer details from mattressnextday.co.uk product page, October 2026.
Key benefits
- More room each than a double: At 75cm each, you get 7.5cm more space than on a UK double, which means fewer nudged elbows when your partner turns over in the night.
- Length for a taller partner: The 200cm length adds 10cm over a UK double, so someone approaching 6ft can stretch out without their feet ending up at the very edge.
- Less disturbance from early alarms: The 1000 individually pocketed springs respond separately, which means a partner slipping out for an early shift is less likely to jolt the person still asleep.
- Cooler with two people sharing: A 3cm CoolGel layer sits beneath the pillow top and is designed to disperse heat, which helps when two bodies share one bed and warmth builds up.
- Manageable to rotate, with help: Yes, turning a 150 x 200cm mattress that's 30cm deep is a two-person job, but the turning handles make rotating it head to toe far easier.
This size suits you if...
You share the bed every night and keep ending up in each other's space on a UK double, one of you is approaching 6ft and would value the extra 10cm of length, or you get up at different times and want a bit more distance from your partner's alarm.
Consider another size if...
Your bedroom is smaller than our suggested minimum of 2.7m x 2.9m. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
Is the SleepSoul Heaven Cool Gel 3000 Pocket Pillowtop in a UK king big enough for two adults?
For most couples, yes. The UK king gives 75cm each, which is 7.5cm more each than the UK double. If you still want more room, the UK super king gives 90cm each, although we suggest at least 3m x 2.9m of floor for that size.
What size bedroom do I need for a UK king SleepSoul Heaven Cool Gel 3000?
We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m feeling comfortable. New build master bedrooms can feel much tighter once fitted wardrobes are in, so measure the clear floor that's actually left, not the room on the plans.
Is a UK king mattress long enough for a tall partner?
The UK king is 200cm (6ft 6in) long, 10cm more than the UK double's 190cm. That extra length is a relief for anyone approaching 6ft. The UK super king is the same length, so you'd only size up again for width, not legroom.
What bedding fits a king size SleepSoul Heaven Cool Gel 3000 Pocket Pillowtop?
Standard king sheets fit, along with a 230 x 220cm king duvet. The mattress is 30cm deep with a pillow top, so look for fitted sheets that list a pocket depth of at least 30cm, or the corners may keep pinging off.
Should a couple choose the UK king or UK double SleepSoul Heaven Cool Gel 3000?
The UK double gives 67.5cm each and needs at least 2.6m x 2.8m. The UK king gives 75cm each, adds 10cm of length and needs at least 2.7m x 2.9m. If your room allows it, the UK king suits couples who wake each other or have a taller partner.