Coolflex® Mattresses

About Coolflex®

Coolflex® is one of the few mattress brands to achieve consistent five-star Trustpilot reviews across their entire range, from their Essentials line through to the premium ProAdapt™ models. Designed in the UK, every Coolflex® mattress focuses on comfort, support, and modern temperature-regulating technology.

Their mattresses feature superior alternatives to traditional memory foam for orthopaedic-level support, alongside advanced cooling features — and all Coolflex® models arrive boxed and rolled for convenience.

What types of Coolflex® mattresses are available?

models, including:

• Coolflex® Hybrid CHILL Mattress: A luxurious hybrid combining pocket springs, cooling technology, and pressure-relieving foam for optimal back support and temperature control. This makes it one of the best mattresses for back pain.
• Coolflex® Lux Ortho Pocket Mattress: An orthopaedic, extra-firm mattress using specialist, breathable reflex foam and pocket springs. Ideal for reducing back pain and promoting a healthier sleeping posture.
• Coolflex® Hybrid ICE Mattress: Perfect for hot sleepers, thanks to cooling gel-infused layers and a plush pillow top that absorbs heat and keeps your body cool all night long.

What makes Coolflex® mattresses different?

Coolflex® offers a more supportive alternative to standard memory foam. Their specially designed reactive foam is denser than conventional memory foam, which provides:

• Better spinal alignment

• Improved pressure-point relief

• Enhanced long-term durability

Hybrid models also include individually pocketed springs, which reduce motion transfer and add responsive support, ideal for couples.

Cooling is another major strength:

• Removable AirFlo™ Covers actively draw heat away

• Hybrid constructions improve airflow

• Advanced foams prevent heat retention

What is a Coolflex® “mattress in a box”?

Coolflex® mattresses are designed to be vacuum-packed, rolled, and boxed, reducing their packed size by up to 70%, which makes delivery and room placement effortless.

Once unboxed, they expand to full shape in just a few hours and are ready to sleep on the same day. Our guide to How Long Does a Mattress Take to Expand? can help you set up your Coolflex mattress.

What sizes do Coolflex® mattresses come in?

Coolflex® offers all popular UK sizes, including:

• Single: 3' x 6'3"

• Small Double: 4' x 6'3"

• Double: 4'6" x 6'3"

• King: 5' x 6'6"

• Super King: 6' x 6'6"

Read our full size guide for more information on the different sizes available.

How fast are Coolflex® mattresses delivered?

We offer free next-day delivery across the UK mainland, or you can pre-book a delivery date up to four weeks in advance.

What warranty does a Coolflex® mattress come with?

All Coolflex® mattresses come with a 5-year manufacturer’s guarantee, which covers repair or replacement in the unlikely event of a defect within this period.