Investing in your sleep is one of the most important things you can do for your overall well-being. With a plush pillow top, cooling memory foam, and highly supportive pocket springs, the Coolflex® Hybrid CHILL Mattress helps you enhance your nightly set-up to offer you the rejuvenating, refreshing sleep you deserve. Plus, with a Which? Best Buy January 2025, you can trust this mattress to give you the comfort you deserve.

"A great choice if you tend to overheat or suffer with night sweats" - Which? Best Buy January 2025

Did you know that as you sleep, your body temperature drops by up to 2 degrees? To help you reach this optimal sleeping temperature sooner, the Coolflex® Hybrid CHILL Mattress features specialist Cool Gel Memory Foam, designed to draw heat away from the body. Not only does this prevent overheating for undisturbed sleep, but it gently cushions your entire body, ensuring that at every point of contact, you experience a cooling, refreshing sensation that helps you sleep.

"It doesn't matter what position you like to sleep in, this mattress has your back"

To accompany this innovative Cool Gel, layers of Comfort Foam also cradle your pressure points, helping to relieve pressure across your entire body. Up to 800 pocket springs accompanied by a layer of up to 1200 mini pocket springs provide targeted pressure relief with expert levels of precision. The deep, individually pocketed springs target support to your key pressure points, helping to keep your spine aligned, while the mini pocket springs ensure no pressure point is left without support. These mini springs are found within the plush pillow top layer of the mattress, which acts as an innovative, stitched-in mattress topper to ensure maximum comfort.

"This mattress won't soften or sag as it ages"

Reinforced edges help you enjoy the full surface of the mattress without worrying about 'roll together', where you end up rolling towards the centre of the mattress. Instead, an innovative design and two firmer outer rows of springs provide personalised sleeping zones for you and your partner, helping you both get the rest you need.

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• Cool Gel Memory Foam encourages an optimal sleeping temperature and cushions your body
• Layers of Comfort Foam gently mould to your body shape for personalised pressure relief
• Up to 800 pocketed springs move independently to target support to key areas of your body
• Up to 1200 mini pocket springs within the pillow top layer ensure no pressure point is left without support
• A medium feel makes this mattress ideal for all types of sleepers, in any sleeping position
• Reinforced edges maintain the structure of the mattress & help you enjoy the full sleep surface
• Vacuum-packed, rolled, and boxed, this mattress is easy to transport for your convenience

We provide our award-winning Free Next Day Delivery service to most locations, sending a proper night’s sleep out far and wide. Hassle-free and convenient, you can even choose a time and day that suits you, have us take your old mattress away for recycling, and get us to deliver to your room of choice!

In some places, a small fee will be charged to help us get you your best night’s rest as quickly as possible. Take a look at the following postcodes to see if this applies to you, and if you’re not sure, then use our helpful Postcode Checker to help you shop with confidence.

​Coolflex®​ 5 Year Guarantee

​Coolflex® mattresses are made with the most meticulous of care, but in the very unlikely event that something should go wrong as a result of faulty material or craftsmanship, you're covered by a generous 5 year guarantee.

Download warranty/guarantee information