From independent research • Ohio State University
An unprotected mattress builds up allergens with every night of use.
Between 100,000 and 10 million dust mites can live in a used mattress - feeding on the dead skin cells you shed every night. A mattress protector is the only thing that stops sweat, skin and allergens penetrating the mattress itself. The Cotton Protector's breathable jersey knit fabric and Miracle Membrane barrier block allergens without trapping heat.
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500-700ml
of sweat your body produces in a single night
12 million
UK adults estimated to have a dust mite allergy
60.6%
of UK mattress shoppers want hypoallergenic materials*
Dust mites: Ohio State University. Sweat: clinical exercise physiology. 12 million: Allergy UK. 60.6%*: REM-Fit Mattress Finder, 105,165 respondents.
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Soft jersey knit cotton - breathable, natural feel against the skin
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Miracle Membrane barrier - protects against dust mites, allergens and spills
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Stretches to fit mattresses up to 35cm deep - secure, snug fit
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Machine washable - easy to keep clean
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5-year guarantee - against defects in workmanship or materials
The REM-Fit Cotton Mattress Protector is built for everyday comfort, with a soft, breathable jersey knit cotton fabric that lets your skin breathe naturally while you sleep. A Miracle Membrane barrier sits underneath, blocking dust mites, allergens and spills without affecting the feel of the fabric against your skin.
Who is it for?
Suited to anyone who wants reliable, everyday mattress protection without paying for cooling or moisture-wicking technology. The cotton fabric is a good fit for sleepers who run warm in synthetic fabrics but don't need active temperature regulation.
What makes it different?
The combination of breathable cotton and a Miracle Membrane barrier means the protector blocks allergens and spills without trapping heat the way some waterproof protectors can. It's a straightforward, comfortable option that protects your mattress investment from day one. Pairs well with any REM-Fit hybrid mattress to help protect your sleep trial and guarantee.
Frequently asked questions
Do I need a mattress protector?+
It is strongly recommended. A used mattress builds up sweat, skin cells and anywhere between 100,000 and 10 million dust mites over time, and a protector is the only thing that stops those reaching the mattress itself. It also keeps your mattress clean and helps protect your sleep trial and guarantee, since staining can void them.
Is the cotton protector waterproof?+
Yes. A Miracle Membrane barrier underneath the cotton blocks spills and stains from reaching the mattress, while the breathable cotton surface stays soft against the skin and does not trap heat the way some waterproof protectors can.
Can you wash the cotton mattress protector?+
Yes, it is machine washable, so it is simple to keep clean. Washing it regularly removes the sweat, skin cells and allergens that build up on the sleep surface, which is part of what keeps your mattress hygienic over time.
What is the difference between the Cotton, Bamboo and Tencel mattress protectors?+
All three use the same Miracle Membrane barrier; the surface fabric is the difference. Cotton is the breathable, everyday option. Our
Bamboo Protector is naturally more breathable and hypoallergenic, a step up for allergy-conscious or warmer sleepers, and our Tencel Cool Protector actively wicks moisture for hot sleepers. Choose cotton for reliable everyday protection without paying for cooling technology.
Does it fit a deep mattress?+
Yes. It stretches to fit mattresses up to 35cm deep for a secure, snug fit, and comes in UK sizes from single up to super king. Just choose your size at the top of the page.
