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Pure Cotton Mattress Protector

Product code: T355418Q

This pure cotton mattress protector adds an extra layer of comfort while safeguarding your mattress. The quilted design features naturally breathable cotton filling for a fresher, more hygienic sleep experience. Designed to fit a range of mattress sizes for your bed, it helps prevent discoloration and general wear, effectively prolonging your mattress lifespan.

M&S

Online only

Pure Cotton Mattress Protector

£25 - £40

Colour

Size

Also available in: Extra Deep Protector
Free standard delivery over £75, otherwise from £3.99

Reviews (636)

4.3

68% Recommended this product

Mentions
14 November 2026LEONIE
Verified Purchase

Too big!

No, I don't recommend this

Very, very disappointing… ordered usual king size and it was at least 3-4 inches in width too big! The skirting elastic on the four corners was very slack (needs to be so much tighter) so I repackaged it up and sent it back. Major fail!

Reviewer Ratings

Comfort

Poor

Helpful?

Reviewer Ratings

Comfort

Poor

13 November 2026WriterAtHome
Verified Purchase

Very good quality

Yes, I recommend this

Very good quality mattress protector. Fits well on the mattress.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

08 November 2026Annie Sue
Verified Purchase

Nice quality poor fit

Yes, I recommend this

Bought this because it’s cotton but wish it came in. 25 cm mattress depth as it’s slightly too big so it doesn’t stay smooth on mattress. I don’t have a topper as my mattress is perfect without one it might fit better with one

Reviewer Ratings

Comfort

Average

Helpful?

Reviewer Ratings

Comfort

Average

06 November 2026Budbrook
Verified Purchase

Comfortable fit

Yes, I recommend this

Lovely confortable cotton mattress protector. The sides are deep enough to cover the mattress properly and it stays in place. I'm very pleased with it.

Helpful?

03 November 2026Goodness knows
Verified Purchase

Cotton mattress protector

Yes, I recommend this

Very good cotton protector. Generous size which presumably allows for shrinkage after washing. Very comfortable. Would highly recommend and a good price.

Helpful?

31 October 2026HO2026
Verified Purchase

Happy!

Glad to find a 100% cotton protector. It fits well on superking bed, the standard depth worked fine for us.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 October 2026PJPayne
Verified Purchase

Very good protector

Yes, I recommend this

Just what I needed for my new memory foam mattress.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 October 2026Gifra
Verified Purchase

Very poor fitting

No, I don't recommend this

This mattress protector did not fit the standard double mattress properly and I subsequently found I could not return it so this has been a total waste of money.

Helpful?

12 October 2026brenda the spender
Verified Purchase

Basic mattress cover

Yes, I recommend this

Just what I needed! A cover to protect the mattress, cotton, easy and not too heavy or bulky to launder. A good price too.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

29 September 2026EandGsmum
Verified Purchase

Excellent!

Yes, I recommend this

I’d bought an M&S ‘Body Sensor’ flat sheet to double up and pop on the mattress to try and keep me cooler at night. But then I spotted this 100% cotton mattress protector for the same price. So it was a no brainer and the flat sheet went back. Fits our mattress (32cm deep) very well and seems great so far. Haven’t washed it yet

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

19 September 2026Bowmore
Verified Purchase

Good fit but very thin

No, I don't recommend this

Good fit but the quilting is very thin which is disappointing.

Reviewer Ratings

Comfort

Average

Helpful?

Reviewer Ratings

Comfort

Average

14 September 2026rhyd26
Verified Purchase

Good quality - pure cotton matress protector

Yes, I recommend this

Fits and feels great - pure cotton is good and it appears only M&S sell a pure cotton mattress protector.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 September 2026Bestone
Verified Purchase

Good Fit

Yes, I recommend this

Mattress Protector fitted well, and not too bulky.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

19 August 2026Rekker57
Verified Purchase

Quality

Yes, I recommend this

Great quality and fits well on the bed. I’d buy again.

Helpful?

12 August 2026The happy cyclist
Verified Purchase

Great fit, quality and price

Bought this as a replacement for a previous M&S purchase. Delighted with fit, quality and price.

Helpful?

09 August 2026YKWYK
Verified Purchase

Fidget - No Movement

Yes, I recommend this

Excellent product, great quality and the fit is perfect. I've even bought a second one for the spare bedroom!

Helpful?

05 August 2026Favabean
Verified Purchase

a loose fit, ok for very deep mattress

Good quality mattress cover but quite a loose fit. Washed well and didn't shrink. Not sure whether buying a more expensive mattress cover made of cotton has actually made it any cooler compared to my previous synthetic one, although it has been exceptionally hot.

Helpful?

05 August 2026lavander1
Verified Purchase

Lovely and soft

Yes, I recommend this

I bought one mattress cover to see what I thought. It is lovely and soft to sleep on. I think I will buy another one.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

29 July 2026NanaPat64
Verified Purchase

Cool and comfy

Yes, I recommend this

I was glad to find a pure cotton mattress proctector. It fit the mattress well and the user reports that it is a cool and very comfortable replacement for their previous protector which had had its day.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 July 2026ddmt
Verified Purchase

Value for money

Yes, I recommend this

The material is of a good quality and washes well, although I experienced a little shrinkage after tumble drying. I have a deep mattress and another inch on the depth would have been a better fit.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

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