100 Night Sleep Trial on ALL mattresses!
Recent Searches
    Suggestions
      Top Products

      Coolflex® Premium Memory Hybrid Mattress

      4.9 out of 5
      (80)
      (7)
      (0)
      (0)
      (1)

      Experience personalised support and cool comfort for a restful night's sleep.

      800 Pocket Springs
      Cool Gel Memory Foam
      32cm Depth
      Firmness: Medium Firm
      £279
      RRP £339
      Save £60
      from £279

      Size

      Single 3' x 6'3"
      £279 RRP £339
      In stock
      Small Double 4' x 6'3"
      £329 RRP £409
      In stock
      Double 4'6" x 6'3"
      £329 RRP £409
      In stock
      King Size 5' x 6'6"
      £379 RRP £449
      In stock
      Super King 6' x 6'6"
      £429 RRP £519
      In stock

      FREE Delivery within Next Day

      FREE delivery Thursday, 29th January

      This product combination is unavailable.
      Out of stock

      Simply pop your email address below, and we'll send you a quick reminder when this item is available!

      Please enter a valid email.
      Keep an eye on your inbox. We'll let you know when this item is back in stock.
      Something went wrong, please try again.
      ​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

      100 Night Sleep Trial icon
      100 Night Sleep Trial

      Finding the perfect mattress shouldn't be stressful. That's why we offer a generous 100-night sleep trial. Snuggle in and test it out for at least 50 nights. If it's not your perfect, match we’ll offer you an exchange for a mattress that you love even more.

      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.

      • AB10-AB16, AB21-AB25, AB30-AB39, AB41-AB45, AB51-AB56
      • CA1-CA9
      • DD1-DD11
      • DG1-DG14, DG16
      • EH1-EH49, EH51-EH55, EH91, EH95, EH99
      • FK1-FK21
      • G1-G5, G9, G11-G15, G20-G23, G31-G34, G40-G46, G51-G53, G58, G60-G79, G18-G84, G90
      • IV1-IV19, IV30-IV32, IV36
      • KA1-KA30
      • KY1-KY16, KY99
      • LA1-LA7
      • ML1-ML12
      • PH1-PH26
      • TD1-TD15

      Old Mattress Removal

      For just £39, our fast and friendly team will collect your old mattress at the exact same time we deliver your new one. No waiting, no heavy lifting, and no clutter. 100% of your old mattress is carefully recycled and kept out of landfill. Simply select 'Old Mattress Removal' at checkout.

      A logo for Ecologi
      Your order helps us plant trees

      151,470+ Trees planted so far

      Rated Excellent

      4.9/5
      based on 88 reviews
      Trustpilot star rating
      Quality of product
      4.9 / 5
      Comfort Rating
      4.9 / 5
      Value for Money
      4.9 / 5
      91%
      8%
      0%
      0%
      1%

      Customer Review Summary

      Customers have frequently complimented the product for its remarkable comfort and support, which has notably improved their sleep quality and reduced discomfort during the night. The quality of materials used has also been a point of praise, with many agreeing that it exudes a premium feel, contributing to an overall sense of satisfaction. However, some users have mentioned that the product can feel firmer than they expected, which may not suit everyone, yet is appreciated by those seeking enhanced spinal support. Ultimately, this product is well-regarded for its ability to enhance sleep while maintaining impressive durability and quality.

      Exceptional Comfort
      Excellent Support
      Premium Materials
      Improved Sleep Quality
      Durable Construction
      Heavy Weight
      Firmer Than Expected

      Reviews with images

      A customer photo for Coolflex® Premium Memory Hybrid Mattress - Very very comfortable. Exceptionally well made! I cant believe it came in a smal. Author: John Dunn. Dated: 2025-11-25
      Trustpilot Star rating Verified

      Really comfy and great for my back

      Aaron 24th Jan
      Trustpilot Star rating Verified

      Very comfortable mattress that's helping with the trouble im having with my spine.Highly recommended

      Graham 17th Jan
      Trustpilot Star rating Verified

      Isn't at all cool, but is comfy.

      Sharon Howard 3rd Jan
      Trustpilot Star rating Verified

      Great mattress

      Mrs J Gamble 29th Dec
      Trustpilot Star rating Verified

      This mattress is very comfortable so far.I still get very warm though but that could just be an age thing, we also use a mattress protector and so not sure if that affects it. Needs bigger than normal bottom sheet but as we had a mattress topper on our old mattress our sheets are fine. Not had any smell from it from the day we got it. Very heavy to set up but easy enough once we got it on the bed.

      Mrs Jayne Edwardss 8th Dec
      Trustpilot Star rating Verified

      Very comfortable

      Susan 29th Nov

      Frequently paired with

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      More Medium Firm Mattresses

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      More with Pocket Springs

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      More from Coolflex®

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image

      You might also like

      A placeholder image
      A placeholder image
      A placeholder image
      A placeholder image
      A logo for Ecologi

      Your order helps us plant trees

      151,470+ Trees planted so far

      Free, fast delivery

      Award winning delivery

      Mattress recycling

      Planet-friendly disposals

      A logo for Klarna

      0% Interest finance

      Buy now, pay later with Klarna

      18+, T&Cs apply, Credit subject to status
      Coolflex® Premium Memory Hybrid Mattress

      Coolflex® Premium Memory Hybrid Mattress

      £

      View basket

      Pair it with

      I'm on Sale
      Coolflex® Cool Gel Memory Foam Pillow Coolflex® Cool Gel Memory Foam Pillow
      4.7 star rating

      4.7 (7)

      £39 £69 You save £30

      I'm on Sale
      Purecare® Essentials Waterproof Anti-Microbial Mattress Protector Purecare® Essentials Waterproof Anti-Microbial Mattress Protector
      4.8 star rating

      4.8 (29)

      From £21

      I'm on Sale
      Bellissimo Egyptian Cotton Deep Fitted Sheet Bellissimo Egyptian Cotton Deep Fitted Sheet

      From £15

      I'm on Sale
      DreamEasy Luxury 10.5 Tog All Seasons Duvet DreamEasy Luxury 10.5 Tog All Seasons Duvet
      4.5 star rating

      4.5 (45)

      From £17