From clinical research • exercise physiology
Your mattress absorbs around 200 litres of sweat every year.
The body produces up to 700ml of sweat during a single night's sleep. Without a protector, every drop goes directly into the mattress - along with the skin cells that feed up to 10 million dust mites. The Tencel Cool Protector creates a washable, cooling barrier between you and your mattress.
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10 million
dust mites in an unprotected mattress after years of use
up to 41%
of adults experience night sweats
84%
of UK shoppers want temperature regulation*
~200L: calculated from 500-700ml nightly sweat (clinical exercise physiology). 10 million: Ohio State University. 41%: American Family Physician. 84%*: REM-Fit Mattress Finder, 105,165 respondents.
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- Good Housekeeping Winner 2026 - Best Cooling Protector
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Silent Tencel fibres - durable, hypoallergenic and smooth to the touch
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Miracle Membrane barrier - protects against dust mites and other allergens
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Wicking fabric - moves sweat away from the body to keep you dry and cool
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Stretches to fit mattresses up to 35cm deep - secure, snug fit
The REM-Fit Tencel Cool Mattress Protector won Good Housekeeping's Best Cooling Protector award in 2026, thanks to silent Tencel fibres that wick moisture away from the body while you sleep. A Miracle Membrane barrier sits underneath to protect against dust mites and allergens, and the whole protector is designed to stay quiet, smooth and cool against the skin all night.
Who is it for?
Suited to hot sleepers and anyone who finds standard cotton or polyester protectors trap heat overnight. The wicking Tencel fabric makes it a good match for warmer bedrooms or sleepers who tend to overheat.
What makes it different?
Unlike standard waterproof protectors, the Tencel fibres actively wick moisture rather than just sitting on top of the mattress, which is what helped it win Good Housekeeping's cooling protector award. It also stays genuinely silent during movement, where many waterproof protectors rustle. Pairs well with any REM-Fit hybrid mattress to help protect your sleep trial and guarantee.
Frequently asked questions
Do cooling mattress protectors actually work?+
Yes, when they wick moisture rather than just sit on top. The Tencel Cool Protector uses silent Tencel fibres that move sweat away from your body, so heat and moisture do not build up against you the way they do with standard cotton or polyester protectors. It won Good Housekeeping's Best Cooling Protector award in 2026, and comes with free UK delivery.
What is a Tencel mattress protector?+
Tencel is a soft, breathable fibre known for wicking moisture and staying cool. A Tencel protector like this one uses those fibres on the sleep surface to keep you dry and cool, with a Miracle Membrane barrier underneath that guards the mattress against sweat and allergens.
Does a mattress protector stop dust mites?+
A good one helps significantly. The Tencel Cool Protector has a Miracle Membrane barrier that blocks the skin cells and moisture dust mites feed on, and the Tencel fibres are hypoallergenic, which makes it a strong choice for allergy sufferers and anyone sensitive to dust.
Is the Tencel protector noisy?+
No. It is designed to stay genuinely silent during movement, unlike many protectors that rustle or crinkle when you turn over. The Tencel surface stays smooth and quiet against the skin, with the Miracle Membrane barrier underneath guarding the mattress against sweat and allergens.
What size mattress does it fit?+
It stretches to fit mattresses up to 35cm deep for a secure, snug fit, and is available in sizes from single up to super king. Just choose your size at the top of the page.
