MCMXL-SD 5060667032511

Coolmax XL 30cm Memory Foam Mattress

  • Coolmax XL 30cm Memory Foam Mattress - Memory Foam Warehouse
  • Coolmax XL 30cm Memory Foam Mattress - Memory Foam Warehouse
  • Coolmax XL 30cm Memory Foam Mattress - Memory Foam Warehouse
  • Coolmax XL 30cm Memory Foam Mattress - Memory Foam Warehouse
  • Coolmax XL 30cm Memory Foam Mattress - Memory Foam Warehouse
Coolmax Memory Foam Mattresses

The Coolmax XL 4G Air Memory Foam Mattress is the deepest mattress in our range (30cm) and is the best memory foam mattress for heavier sleepers wanting additional night-time support. With free delivery 1-3 working days.

Due the the current pandemic delivery can take up to 14 days.

  • £429.99 Save Up To £150
    (minimum spend £500)
Shipping calculated at checkout.

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Main Features


The top layer of 4G Air memory foam provides the ultimate in comfort and support, whilst ensuring that you don't get too hot during the night. The open-cell structure of 4G Air memory foam encourages air to flow through the mattress, wicking away excess heat and moisture naturally to create a fresh and hygienic sleeping environment.

Cooling Open Cell Foam

Beneath is a layer of Revo technology foam, which shares the cooling, open-cell structure, described above. This provides just the right amount of bounce in your mattress without the need for traditional pocket springs.

Supportive Reflex Base

The extra deep reflex foam base provides high levels of support, and creates a durable and long-lasting mattress.

Coolmax Memory Foam Technology

This affordable memory foam mattress comes with a CoolMax® mattress cover which is removable and washable at 30ºC. Coolmax® fabric technology wicks away excess heat and moisture, to prevent you from stirring.

Mattress Delivery 

The Coolmax XL 30cm Memory Foam Mattress is normally shipped same day on orders before 1pm and delivered within 1-3 working days as a rolled up mattress, allowing you to move it into your room of choice quickly and easily.

Sleep Trial
100 Nights
British made
10 Years
Washable Cover
Machine Wash
1-3 working days
Mattress Type
Memory Foam
Memory Foam
Customers Reviews

Customers Questionsdropdown

If you have a question about Memory Foam Warehouse or any of our memory foam mattresses, pillows, toppers or beds; we’ve created a comprehensive mattress buying guide and FAQ’s page which should be able to answer most queries. If you can’t find what you’re looking for on these pages or would rather speak to one of the team please contact us here.

Delivery & Returnsdropdown

Contact detailsAll goods purchased online are shipped from our factory:Unit 1 Navigation Yard, Chantry Bridge, Wakefield. WF1 5PQ
01924 842 322

Order confirmation & deliveryOnce you have placed your order, you will receive a confirmation email. Please check this to ensure your order is correct. If anything is wrong, please call us and we will correct it immediately.

Once your order has been prepared by our team and is on its way out to you, you will receive a dispatch confirmation. This email contains any tracking information pertaining to your order. If you have selected our two man delivery service, you will be contacted by the courier to arrange a delivery date and time to suit you. Please note that a signature is always required upon receipt.

We can also dispose of your old mattress; simply select the Recycling option at the checkout where available.

Specific Delivery Date RequestsPlease contact us for any specific delivery requests and we will try to meet your needs. Return questions can be sent to

CouriersWe use a number of couriers to make our deliveries, depending on where and how our customers need our products. Our most convenient service is our two man delivery service, delivering your mattress to the room of your choice and disposing of the packaging for you.

Returns policy

Any items which are returned for refund or exchange must be received by Memory Foam Warehouse within 30 days in a new and unused condition and with original packing intact, along with all receipts. We strongly recommend you use a recorded/insured delivery service as we regret that we cannot be held responsible for goods lost in transit. Any refund will be made in the tender type originally transacted. We are unable to process items that do not meet with these criteria. More details available here

100 night trial

The details of our 100 night trial are available here.


All of our mattresses come with a 12 month full guarantee, covering our products against any defects caused by material or manufacturing defects. Once this 12 months period has passed, many of our mattresses are covered by 5, 10 and 15 year warranties. For full details of our warranties, please visit our Guarantees & Warranties page


We reserve the right to change our prices immediately if there is any change in the VAT rate or if there is a major change in the value of the pound against any currencies which could affect some imported items. Please note that the actual colour of some items may differ slightly from the photographic representations shown on this internet site. Whilst we endeavour to thoroughly test all hardware products on this site, it should be noted that descriptions of performance and suitability are purely subjective