Sleepeezee Cool Response Gel Hybrid Double Mattress
The Sleepeezee Cool Response Gel Hybrid pairs 1000 pocket springs with a layer of StayCool™ Gel, which means you get responsive support underneath and a gently cushioned, cooler-feeling surface on top.
- Cooling gel steadies temperature
- Minimises partner disturbance
- Gentle cushioning without sinking
£529
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Sleepeezee Cool Response Gel Hybrid Mattress
More available sizes
Mattress details
Mattress
Sleepeezee Cool Response Gel Hybrid Mattress
Size
Firmness
Medium
Construction
Hybrid
Gel
Depth (cm)
27
Layers
3
Layer Details
Cool-Touch Cover
A soft Cool Touch cover that helps maintain the correct temperature through the night. You'll feel it most on warm evenings, when the surface stays a little cooler against your skin.
StayCool™ Gel
A generous layer of StayCool™ Gel that gently moulds to your body shape, which means personalised cushioning without the enveloping hug of traditional memory foam. The gel is also part of the mattress's temperature-management story.
Pocket Springs
Individually pocketed springs at medium tension provide targeted support, each one adapting independently to your movements. That independence helps limit motion transfer if you share the bed.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Sized for a typical bedroom: We suggest a room of at least 2.6m x 2.8m for a UK double, so it suits most main bedrooms without taking over the floor.
- A cooler surface when you're sharing: Two sleepers on 135cm of width build up warmth quickly, and the Cool-Touch cover and StayCool™ Gel layer are designed to keep the surface temperature steadier.
- Less disturbance at close quarters: At 67.5cm each you lie closer together than on a UK king, so pocketed springs that move independently help when your partner shifts in the night.
- A sensible guest room choice: The medium feel suits most sleepers, which means visiting couples can settle on a UK double without needing a night to get used to it.
- Simple to dress: Double sheets and a 200 x 200cm double duvet fit the UK double, and both are easy to find at any budget.
This size suits you if...
You share the bed with a partner and your bedroom is around our suggested 2.6m x 2.8m, or one of you runs warm and you'd like a cooler-feeling surface when there's less room to spread apart.
Consider another size if...
You're both tall or broad and 67.5cm each already feels a little tight. We'd recommend the UK king instead, which gives 75cm each; allow at least 2.7m x 2.9m for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Will a Sleepeezee Cool Response UK double fit in a small bedroom?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m being the comfortable norm. In a second bedroom or a first flat that also has to hold a wardrobe and drawers, measure the room before you commit. The UK double is 15cm narrower and 10cm shorter than the UK king.
How much space do two people get on the Sleepeezee Cool Response double?
Each of you gets 67.5cm of width. That is 7.5cm less each than on the UK king and 22.5cm less each than on the UK super king. For most couples this is enough, and the pocketed springs help limit the movement you feel from your partner.
Is the Sleepeezee Cool Response UK double long enough for tall people?
The UK double is 190cm long, or 6ft 3in. If either of you is tall enough for your feet to reach the end, the UK king is 10cm longer, although it needs a larger room: we suggest at least 2.7m x 2.9m.
Can I fit bedside tables on both sides of a Cool Response double?
At 135cm wide, the UK double is one of the easier sizes to fit with a table on each side. Our 2.6m x 2.8m suggestion is a minimum, so if bedside tables matter to you, a room closer to 3m x 3m will give you more space to walk round the bed.
Is the Sleepeezee Cool Response double too big for one person?
Not if you like room to spread out. The UK double is 45cm wider than the UK single, which leaves space for a dog or cat curled in a corner without it pressing against you. If your room is tight, the UK single needs at least 2.1m x 2.8m.