Coolflex Hybrid ICE Mattress
The Coolflex Hybrid ICE is a 26cm medium firm hybrid that pairs cool gel-infused memory foam with over 800 pocket springs, which means you get the pressure-relieving hug of foam without the heat build-up foam is known for.
- Cool gel foam for hot sleepers
- Support adjusts to shoulders & hips
- Medium-firm feel suits most sleepers
£329
Get the lowest price we've found
The Coolflex Hybrid ICE is good value for a hybrid with cooling technology. It holds a Which? Best Buy for double mattresses (February 2025), is hypoallergenic and vegan friendly, and comes with a 5 year guarantee. If you sleep warm and want foam comfort with proper spring support, it deserves a close look.
Mattress specifications
Firmness
Medium Firm
Type
Hybrid
Depth (cm)
26
Number of Layers
3
Trial Period (nights)
Warranty (years)
5
Price Range
£329 to £529
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Combination Sleeping
Certifications
BS 7177
Assessed from Coolflex's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
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 & layer details
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.
Best suited for?
Warm sleepers
Gel-infused memory foam and a breathable knitted cover work together to help heat escape, so you get contouring without the clammy, overheated feeling.
Allergy sufferers
The hypoallergenic construction gives a sensible choice for anyone who wants bedding that is designed to reduce irritants in the bedroom.
Budget buyers
Described as good value for a hybrid with cooling technology, it brings a Which? Best Buy rating and a 5 year guarantee without a premium feel.
Back sleepers
Over 800 individually wrapped pocket springs move independently, giving targeted support under your shoulders and hips while the medium firm feel keeps your body level.
Eco-conscious buyers
Vegan friendly materials make this a reasonable pick for anyone who wants to avoid animal-derived components in their mattress.
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.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Coolflex Hybrid ICE Mattress
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FAQ's
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.
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