SleepSoul Heaven Cool Gel 3000 Pocket Pillowtop Double 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
£489
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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
- Sized for a typical shared bedroom: At 135 x 190cm, the UK double leaves space for bedside tables on both sides once your room reaches our suggested minimum of 2.6m x 2.8m.
- Each side responds on its own: The 1000 individually pocketed springs each move independently, which means each half of the bed shapes itself to the person lying on it, even at 67.5cm apiece.
- Help with shared body heat: Two people in a UK double generate a fair bit of warmth, and the 3cm CoolGel layer is designed to disperse heat, which helps if either of you runs warm.
- Turning is a two-person job made easier: The mattress is single-sided, so you rotate the UK double head to toe rather than flip it, and the turning handles give you both something to grip.
- Bedding is simple to find: Double fitted sheets are sold almost everywhere, and a 200 x 200cm duvet covers the UK double comfortably with a little overhang for two.
This size suits you if...
You share the bed with a partner who doesn't mind sleeping close, your room is a second bedroom or first flat where a UK king would crowd out the wardrobe and drawers, or you're setting up a guest room for visiting couples who stay a few nights at a time.
Consider another size if...
Either of you sprawls, or you're both broad-shouldered and 67.5cm each feels cramped. If your room allows at least 2.7m x 2.9m, we'd recommend the UK king instead.
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FAQ's
Is the SleepSoul Heaven Cool Gel 3000 UK double big enough for two people?
For most couples, yes, although it's on the cosy side. You each get 67.5cm of width. The UK king gives 75cm each, so the UK double gives you 7.5cm less per person. If you sleep close together that difference rarely matters. If one of you sleeps like a starfish, you'll feel it.
What size bedroom do I need for a UK double mattress?
We suggest at least 2.6m x 2.8m for the UK double, with around 3m x 3m feeling comfortable. At the smaller end you can usually fit a bedside table on each side. Measure around any wardrobe or chest of drawers too, because those pieces tend to eat into the walking space first.
UK double or UK king for a couple: which should I choose?
The UK double is 15cm narrower and 10cm shorter than the UK king. Choose the UK king if your room allows at least 2.7m x 2.9m and you want more personal space. Choose the UK double if your bedroom is tighter, or if keeping space for furniture matters more than extra width.
How big is the SleepSoul Heaven Cool Gel 3000 double in feet?
The UK double measures 4ft 6in x 6ft 3in, which is 135 x 190cm. Like every size of this mattress it is 30cm deep, so allow for that height when you choose a fitted sheet. Look for deep-pocket double sheets so the corners stay put.
Is a UK double mattress long enough if you're tall?
The UK double is 190cm long, the same as the UK single and UK small double. If either of you is tall and your feet already reach the end of your current bed, the UK king is 10cm longer. That length often makes more difference to taller sleepers than the extra width does.