REM-Fit Tencel Cool Mattress Protector
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.
See full data
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. See our full sleep data
  • Good Housekeeping Winner 2026 - Best Cooling Protector
  • Silent Tencel fibres - durable, hypoallergenic and smooth to the touch
  • Miracle Membrane barrier - protects against dust mites and other allergens
  • Wicking fabric - moves sweat away from the body to keep you dry and cool
  • 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.
£69.99
or £23 / m (3 months) with

Available in 10 sizes

REM-Fit Cotton Mattress Protector
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.
See full data
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. See our full sleep data
  • Soft jersey knit cotton - breathable, natural feel against the skin
  • Miracle Membrane barrier - protects against dust mites, allergens and spills
  • Stretches to fit mattresses up to 35cm deep - secure, snug fit
  • Machine washable - easy to keep clean
  • 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.
£49.99
or £17 / m (3 months) with

Available in 10 sizes

Sold out
Tencel Cool Pillow Protector
10%
of a two-year-old unprotected pillow's weight can be made up of dust mites and their droppings - and your face rests on it for eight hours every night. A washable pillow protector is the simplest way to stop allergen and moisture build-up before it starts.
Source: allergen research literature • UK Sleep Statistics 2026
12 million
UK adults estimated to have a dust mite allergy
82.5%
of hot sleepers report trouble sleeping due to overheating
60.6%
of UK mattress shoppers want a hypoallergenic sleep surface*
10% dust mite weight: allergen research literature. 12 million: Allergy UK. 82.5%: NIH peer-reviewed pilot study on cooling bedding, 2025. 60.6%*: REM-Fit Mattress Finder, 105,165 respondents — see full data.
  • Luxury fabrics featuring silent Tencel fibres are durable, hypoallergenic and smooth to the touch
  • Miracle Membrane barrier protects you from dust mites and other allergens
  • Stay dry and cool with wicking fabric that moves sweat away from the body
  • Wick moisture away from sleepers and improve pillow health
  • Stretches to fit pillows up to 75x50 cm
from £29.99
or £10 / m (3 months) with
Cotton Pillow Protector
302×
more bacteria on unwashed bedding after two weeks than on a pet toy. Your pillowcase is one of the highest-bacteria surfaces in the home - and without a protector, those bacteria reach your pillow's filling within weeks. A washable pillow protector adds a second hygiene barrier between you and your pillow.
Source: Amerisleep bed hygiene study, published via Tom's Guide • UK Sleep Statistics 2026
10%
of a 2-year-old pillow's weight can be dust mites and their droppings
3.2 yrs
average time UK adults keep a pillow without replacing
60.6%
of UK mattress shoppers want hypoallergenic materials*
302x bacteria: Amerisleep bed hygiene study via Tom's Guide. 10% dust mite weight: allergen research literature. 3.2yr: Ergoflex UK survey, 2,200 respondents. 60.6%*: REM-Fit Mattress Finder, 105,165 respondents — see full data.
  • Dream in comfort with soft, breathable jersey knit cotton fabric
  • Sleep comfortably with the soft, absorbent, breath-ability of cotton
  • Miracle Membrane barrier protects you from dust mites and other allergens & blocks irritating contaminants
  • Allows skin to breathe naturally, promoting a relaxing sleep climate
  • Stretches to fit pillows up to 75x50 cm
from £24.99
or £8 / m (3 months) with
REM-Fit 400 Bamboo Mattress Protector
From our customer data • 103,958 UK sleepers
Six in ten UK mattress shoppers want hypoallergenic materials - and most protectors trap heat.
60.6% of shoppers in our data want hypoallergenic materials, and 84% want temperature regulation. Most synthetic protectors address one or the other. Bamboo fibres are naturally hypoallergenic and more breathable than cotton - the Bamboo Protector's jersey knit fabric and Miracle Membrane barrier deliver both without compromise.
See full data
~200 litres
of sweat absorbed by an unprotected mattress per year
12 million
UK adults estimated to have a dust mite allergy
84%
want temperature regulation*
~200L: calculated from 500-700ml nightly sweat. 12 million: Allergy UK. 60.6% and 84%*: REM-Fit Mattress Finder, 105,165 respondents. See our full sleep data

The REM-Fit Bamboo Mattress Protector uses a luxuriously soft, breathable jersey knit bamboo fabric that's naturally hypoallergenic, with a Miracle Membrane barrier underneath to protect your mattress from spills and staining. The fabric allows skin to breathe naturally, helping you maintain a relaxing sleep climate night after night.

  • Soft jersey knit bamboo fabric - naturally hypoallergenic and breathable
  • Miracle Membrane barrier - protects against spills and staining
  • Dust mite barrier - helps reduce common allergy triggers
  • Stretches to fit mattresses up to 35cm deep - secure, snug fit
  • Available in 5 UK sizes - Single through to Super King

Who is it for?

Suited to allergy-conscious sleepers who want a natural fibre fabric over a synthetic one. Bamboo's hypoallergenic properties make it a sensible choice for anyone prone to skin sensitivity or dust mite allergies.

What makes it different?

Bamboo fibres are naturally more breathable than standard cotton, so the protector regulates temperature better while still providing the same spill and stain protection. It's a step up from a basic cotton protector for anyone who wants the natural fabric benefits without paying for active cooling technology. Pairs well with any REM-Fit hybrid mattress to help protect your sleep trial and guarantee.

Frequently asked questions

Is a bamboo mattress protector good for allergies?+
Yes. Bamboo fibres are naturally hypoallergenic and the protector includes a dust mite barrier that helps reduce common allergy triggers, which makes it a sensible choice for anyone prone to skin sensitivity or dust mite allergies. In our data, 60.6% of shoppers say they want hypoallergenic materials.
Is a bamboo protector cooler than a cotton one?+
Bamboo is naturally more breathable than standard cotton, so the protector regulates temperature better and is less likely to trap heat. If you run warm but do not need the active wicking of our Tencel Cool Protector, bamboo is a good middle ground between everyday cotton and dedicated cooling.
Is the bamboo protector waterproof?+
Yes. A Miracle Membrane barrier sits underneath the bamboo fabric to protect the mattress from spills, sweat and staining, while the bamboo surface stays soft and breathable against the skin.
What is the difference between the Bamboo and Cotton mattress protectors?+
Both protect your mattress with the same Miracle Membrane barrier; the difference is the surface fabric. The Cotton Protector is a breathable, everyday option, while bamboo is naturally more breathable and hypoallergenic, a step up for allergy-conscious sleepers or those who run a little warm. For active cooling, our Tencel Cool Protector goes further again.
Does it fit a deep mattress?+
Yes. It stretches to fit mattresses up to 35cm deep for a secure, snug fit, and comes in five UK sizes from single up to super king. Just choose your size at the top of the page.
£59.99
or £20 / m (3 months) with

Available in 10 sizes

Order before 1pm for next day delivery

Order before 1pm and you can get it the very next day, totally free of charge!

Alternatively, you can select a delivery date that suits you.

Up To 200 Night Trial

We provide a risk-free sleep trial on all our mattresses

Free Delivery

Free room of choice delivery. Old mattress disposal available

15 Year Guarantee

We’re so confident, we offer a 15 year guarantee!