Firmness
Type
Hybrid
Depth (cm)
26
Number of Layers
3
Trial Period (nights)
Warranty (years)
5
Price Range
£329 to £529
Best Sleeping Position(s)
Certifications
Assessed from Coolflex's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main draw is temperature control. The gel-infused memory foam is designed to maintain an even body temperature, so hot sleepers get memory foam's contouring without the clamminess. Beneath it, over 800 individually wrapped pocket springs move independently, which means support adjusts to your shoulders and hips rather than pushing back evenly across your whole body. The medium firm feel suits most sleepers, although lightweight side sleepers may find it slightly too firm. Certifications add reassurance: fire resistant to the BS7177: 2008 standard, hypoallergenic, vegan friendly, plus a Which? Best Buy. Delivery is free next day to almost everywhere across mainland UK, though a small fee applies for some addresses. Five sizes are available, from UK Single to UK Super King.
Key Features & what's inside
- Knitted Cover. A soft knitted cover that is breathable, which means heat can escape rather than gathering at the surface. It helps keep you at an even temperature all night.
- Cool Gel Memory Foam. A thick layer of cool gel-infused memory foam that gives you the contouring and pressure relief of standard memory foam. The gel infusion helps maintain optimum body temperature, so you sink in without overheating.
- Pocket Springs. The foundation is over 800 individually wrapped pocket springs, each moving independently. That means bespoke, targeted support for each part of your body rather than a one-size response.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a soft, sink-in feel, the medium firm rating will likely feel too solid, particularly for lighter side sleepers. And if you want an all-foam mattress with no spring feel at all, a hybrid like this is not the right construction for you.
Coolflex Hybrid ICE Mattress
Across owner reviews on mattressnextday.co.uk, where it holds a 4.8 rating from 241 reviews, customers praise the pairing of cooling gel memory foam and pocket springs for comfort and support. Reviewers also note it prevents movement transfer between sleepers and provides excellent pressure relief.
View all mattresses
Is the Coolflex Hybrid ICE mattress firm or soft?
It is rated medium firm, a feel that suits most back and combination sleepers. Lightweight side sleepers may find it a little too firm for comfortable pressure relief at the shoulder and hip.
Is the Coolflex Hybrid ICE good for hot sleepers?
It is designed with hot sleepers in mind. The gel-infused memory foam helps maintain an even body temperature, and the breathable knitted cover lets heat escape, so you get memory foam comfort with less of the warmth foam usually traps.
How deep is the Coolflex Hybrid ICE mattress?
It is 26cm deep, made up of a knitted cover, a thick layer of cool gel memory foam and a base of over 800 pocket springs. Most standard fitted sheets should accommodate this depth, but check yours if they run shallow.
What guarantee comes with the Coolflex Hybrid ICE?
Coolflex offers a 5 year guarantee on this mattress. Delivery is free next day to almost everywhere across mainland UK, although a small fee applies for some addresses.
What sizes does the Coolflex Hybrid ICE come in?
Five UK sizes: Single, Small Double, Double, King and Super King. Prices range from £329 to £529 depending on the size you choose.
Couldn't find an answer to your question? Send us a message