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Coolflex® Mattresses

Mix together feeling too hot and back pain, and you’ll ruin a good night’s sleep. But don’t worry, because Coolflex mattresses take on both problems in one go. These premium-quality, state-of-the-art mattresses deliver outstanding comfort with that all-important support for your back. 

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Trustpilot Star rating

Based on 22,224 reviews

Trustpilot Star rating Verified

Ordered sunday night,delivered monday afternoon.Super comfy mattress.Would use again in a heart beat.

Mark St 18th Apr
Trustpilot Star rating Verified

Good selection of mattress for all size and firmness and price points with option to take old mattress away a little pricey maybe but usefull and a varied delivery time slots to suit. Have used several times and will continue to do so

Gary 18th Apr
Trustpilot Star rating Verified

Sunday delivery was an option which really worked for me and was free, which was a bonus. The communication was really good and they turned up on time. The guys were in and out in 5 mins. The mattress is sooo comfortable and really good value.

Christine 18th Apr

About Coolflex

Very few brands of mattresses manage to achieve Trustpilot five-star reviews across the entire range, but Coolflex is the exception. Whether it's an entry-level Essentials or their top-of-the-range ProAdapt™ memory foam mattress, this UK-based brand delivers outstanding performance, with a host of glowing reviews from the people who matter the most – their customers. 

They combine a superior quality alternative to memory foam for orthopaedic levels of support with technology that keeps you cooler all night long. And these mattresses also come boxed and rolled, so they’re easy to transport. 

What types of Coolflex mattresses are available? 

At MattressNextDay, we’re delighted to bring you a selection of the best Coolflex mattresses. Our up-to-date collection includes:

  • Coolflex ProAdapt™ Memory Foam mattress – this top-quality mattress gives you the perfect combination of exceptional cushioned support with that gloriously cool sensation. The medium-firm rating makes it suitable for front, back and side sleepers. The ProAdapt™ foam reacts to changes in temperature and draws excessive heat away from your body, giving you a cooler night's sleep.
  • Coolflex Essentials™ Memory Foam Mattress – available in both medium and firm firmness ratings, this is the mattress to choose if you’re on a budget but don’t want to compromise on comfort or support. It has the same ProAdapt™ memory foam layer, combined with a layer of ProReact™ support foam for a more cushioned feel. 
  • Coolflex ProPosture™ Ortho Foam Mattress – If you like things a little firmer, this is the one for you. With an extra-firm rating, it’s perfect for front sleepers or those who simply love the firm yet cushioned feel of a ProAdapt™ foam mattress. If you suffer from back pain and have been advised to try an extra firm mattress, this one will deliver all the support you need but with absolutely no compromise on comfort.

  • Coolflex® Pocket Plush 2000 Memory Mattress – Now we're talking luxury. This gorgeously comfortable medium mattress has a snuggle factor of 11, with cushioned ProAdapt™ foam and ProPedic™ pocket springs all rolled into one (literally – it comes boxed and rolled!). This one's suitable for all sleepers, whether you prefer to snooze on your back, front or side.

  • Coolflex® Hybrid ICE Mattress - With cooling gel layers, this is THE mattress for hot sleepers. Actively drawing heat away from your body, this medium firm, orthopaedic mattress keeps you at the optimal sleeping temperature all night long. Forget night-time overheating and sweating, as the luxurious pillow top contours to the unique curvature of your body, cooling it down wherever it touches you.

What are Coolflex mattresses?

Coolflex mattresses are an alternative to the standard memory foam mattress. The trouble with most memory foam is it simply doesn’t provide enough support to give you relief from back pain. How Coolflex differs is that it uses its very own and specially designed reactive memory foam that’s denser than normal. This means you get more support and greater comfort.

The use of a dense foam means that you get that cushioned support all along the body, eliminating pressure points and cradling you so that your spine is held in a neutral position. Because they come in various firmness ratings, you have more choice, too. The fact that some are also hybrid mattresses also gives you the added advantage of a sprung core filled with individually pocketed springs. This provides even more responsive support, as well as minimising movement transference. So you and your partner get a great night's sleep, even if one of you is a bit of a wriggler!

The name Coolflex also gives you a clue as to their other big plus – that ability to keep you cooler. Foam mattresses tend to feel a little hot due to the density of the foam. However, Coolflex’s Removeable AirFlo™ Cover actively draws heat away from the body, and the use of pocketed springs in some of their mattresses encourages even greater airflow. The result? A cooler, fresher feel and no more throwing the covers off when you get too hot!

By using state-of-the-art materials and manufacturing processes, Coolflex mattresses provide you with a better night’s sleep at an affordable price. 

What is a Coolflex mattress in a box?

Forget struggling with a full-size mattress up a tight set of stairs; a Coolflex mattress in a box is the answer. Because of how they are designed and the materials used, Coolflex roll-up mattresses can be vacuum-packed, rolled up, and popped into a cardboard box that one person can carry. Simply take your mattress in a box to your bedroom, unbox it, and remove it from the packaging. A Coolflex boxed mattress will unroll and start to regain its original shape. In just a few hours, you have a full-size mattress, exactly where you want it and ready to sleep on. The box is recyclable. If you want to know more about memory foam mattresses, look at our Guide to Memory Foam Mattresses.

What sizes do Coolflex mattresses come in?

Coolflex mattresses come in various sizes to suit all types of beds. The single mattress size measures 3'x6'3", a small double mattress is 4'x6'3", and a standard double is 4'6"x6'3". You can upgrade to a king-size mattress at 5'x6'6" or go supersized with the super king at 6'x6'6".

How fast are Coolflex mattresses delivered?

At MattressNextDay, we know you can't wait to snuggle up on your brand-new Coolflex mattress. So we offer free next-day delivery to UK mainland destinations. If a next-day delivery doesn't suit your plans, then don't worry. You can pre-book a specific delivery date up to four weeks in advance. Check out our delivery page for more details, or give one of our friendly team a call.

What warranty does my Coolflex mattress come with?

A Coolflex mattress is a real investment. But to give you a little extra peace of mind, all Coolflex mattresses come with a manufacturer's warranty. The Coolflex 5-year guarantee means that in the unlikely event of a defect during that period, they'll repair or replace your mattress free of charge (at their discretion). 

Size Imperial Metric
Cot Mattress 3'9" x 1'9" 120cm x 60cm
Cot Bed Mattress 4'6" x 2'3" 140cm x 70cm
Adjustable Small Single 2'6" x 6'6" 75cm x 200cm
Adjustable Single 3' x 6'6" 90cm x 200cm
Adjustable Small Double 4' x 6'6" 120cm x 200cm
Adjustable Double 4'6" x 6'6" 135cm x 200cm
Small Single 2'6" x 6'3" 75cm x 190cm
Single 3' x 6'3" 90cm x 190cm
Small Double 4' x 6'3" 120cm x 190cm
Double 4'6" x 6'3" 135cm x 190cm
King Size 5' x 6'6" 150cm x 200cm
Super King 6' x 6'6" 180cm x 200cm
European Small Single 2'8" x 6'6" 80cm x 200cm
European Single 3' x 6'6" 90cm x 200cm
European Double 4'7" x 6'6" 140cm x 200cm
European King Size 5'3" x 6'6" 160cm x 200cm

All mattress sizes given are approximate and stated sizes refer to the sleeping surface only. Mattresses sizes may vary slightly from their stated dimensions due to manufacturing tolerances, please allow +/- 2 inches (5cm).

Support Best for
 Icon for Memory Foam Memory Foam Body moulding and pressure relieving
 Icon for Natural Fibres Natural Fibres Unrivalled comfort, naturally temperature-regulating
 Icon for Latex Latex Breathable, supportive and eco friendly
 Icon for Cool Gel Memory Foam Cool Gel Memory Foam Active cooling properties, ideal for hot sleepers
 Icon for Soft White Fibres Soft White Fibres Hypoallergenic polyester, soft and durable

Support Best for
 Icon for Pocket Springs Pocket Springs Individual springs for tailored support
 Icon for Foam Foam Conforms to your body's shape, silent (no springs)
 Icon for Open Coil Springs Open Coil Springs Traditional, interlinked springs
 Icon for Pocket Springs Latex Bouncy yet supportive, great for hot sleepers

Firmness Best for
Good for side sleepers, a softer level of support
Good all-rounder for front, side or back sleepers
Medium - Firm
Good for people who change sleeping position
Good for people who sleep on their front or back
Extra Firm
The firmest level of support, also known as orthopaedic