SleepSoul Heaven Gel Pocket 3000 Double Mattress in a Box
The SleepSoul Heaven Gel Pocket 3000 is a mattress in a box, which means it arrives rolled and compressed for easier handling up stairs and through narrow doorways.
- Cool gel layer slows heat build-up
- Plush pillow top cushioning
- Zoned pocket & mini spring support
£358.06
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SleepSoul Heaven Gel Pocket 3000 Mattress in a Box
More available sizes
Mattress details
Mattress
SleepSoul Heaven Gel Pocket 3000 Mattress in a Box
Size
Firmness
Medium Firm
Construction
Pocket Spring
Rolled
Gel
Depth (cm)
Layers
4
Layer Details
Pillow-top layer
A 2cm pillow-top layer of soft, plush filling. It adds a cushioned feel on the surface, so the mattress feels gentler than the medium-firm support underneath.
Coolgel layer
A 3cm Coolgel layer designed to slow down heat build-up in the mattress. This should help if you tend to warm up overnight, though how cool you feel will still vary from person to person.
Pocket springs
1000 pocket springs that move independently to follow your body's shape and support you where you need it. They also help prevent the 'roll-together effect', which matters if you share the bed.
Mini springs
A further 2000 mini pocket springs sit alongside the main springs for extra comfort and support. Together they make up the zoned support system, so different areas of your body get different levels of support.
Layer details from sleepsoul.co.uk and mattressonline.co.uk product pages, October 2026.
Key benefits
- Space to share, space to move: At 135 x 190cm, the UK double leaves floor space for a wardrobe and chest of drawers in rooms where a UK king would have you edging sideways round the bed.
- 67.5cm for each of you: Each sharer gets 67.5cm of width, which suits couples who sleep fairly close, although a restless partner may make the UK double feel a little snug.
- Keeps a tight budget sensible: If you're furnishing a first flat or a whole home at once, this affordable mattress in a UK double covers the main bedroom without taking funds from every other room.
- Bedding you can buy anywhere: Double sheets and a 200 x 200cm duvet are stocked almost everywhere, so dressing the UK double never means hunting down specialist sizes.
- A proper bed for visiting couples: In a spare room, the UK double gives guests a genuine shared bed, something a UK single or UK small double cannot offer two adults.
This size suits you if...
You share the bed with a partner who doesn't sprawl, your room is around our suggested 2.6m x 2.8m minimum and still has to fit a wardrobe, or you're setting up a guest room where couples will stay.
Consider another size if...
You and your partner both like to spread out, or either of you is tall. We'd recommend the UK king instead, which is 10cm longer and wider; allow at least 2.7m x 2.9m.
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FAQ's
Is the SleepSoul Heaven Gel Pocket 3000 UK double wide enough for two adults?
The UK double gives each of you 67.5cm, which is fine for couples who sleep close or keep still. If one of you starfishes, you'll feel it. SleepSoul doesn't publish edge support details for this mattress, so check with the retailer if you often sleep near the edge.
Will a UK double fit in my bedroom with bedside tables on both sides?
We suggest at least 2.6m x 2.8m for the UK double. At that minimum, small bedside tables are usually manageable, but a wardrobe and drawers too can get tight. With around 3m x 3m, fitting tables on both sides plus storage becomes far more comfortable.
SleepSoul Heaven Gel Pocket 3000 UK double or UK king for a couple?
The UK double is 15cm narrower and 10cm shorter than the UK king, giving each sharer 7.5cm less width. If your room clears our suggested 2.7m x 2.9m for the UK king, sizing up helps restless couples. In a typical bedroom, the UK double keeps more floor free.
Is the SleepSoul Heaven Gel Pocket 3000 double long enough for tall sleepers?
The UK double measures 190cm long, or 6ft 3in. Most people fit comfortably, but if you're tall enough for your feet to reach the end on other beds, the UK king adds 10cm of length. Compare the retailers listed on this page for the sizes currently available.
Should a solo sleeper with a dog choose the UK double over the UK single?
Yes, if the room allows it. The UK double is 45cm wider than the UK single, so a dog or cat can take its corner without pushing you to the edge. If your room is smaller, we suggest at least 2.1m x 2.8m for the UK single.