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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.

Product details

Item details

To keep your mattress clean & fresh

Fits mattresses up to 30cm depth

Safety Warning

Keep away from fire and flames

Features

Our breathable fabric allows air to circulate freely keeping you feeling fresh

Composition

Outer - 100% cotton, Filling - 95% Cotton, 5% Mixed Fibres, Backing (of a mattress protector) - 100% Cotton

Care

Wash at 40°C

Do not bleach

Tumble dry low temperature

Do not iron

Do not dry clean

M&S

Pure Cotton Mattress Protector

€33 - €52

Colour

Size

Free standard delivery over €75

Reviews (602)

4.3

69% Recommended this product

Mentions
07 May 2026John77777

Too big and useless

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

We ordered the double size but it's far too big. Its the length of a king size and almost the same width, so it was completely useless and we had has to return it. Total waste of time and unbelievable that they can't get the sizing correct

Reviewer Ratings

Comfort

Poor

Helpful?

Reviewer Ratings

Comfort

Poor

28 April 2026Gardeninggranny5

Good quality cotton mattress protector

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This is a good quality cotton mattress protector. It fits well and is comfortable.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

27 April 2026cathouse123

Good Quality

Originally posted on marksandspencer.com (UK)

Good Quality and easy fit to the bed. Plush feeling. Didn’t work for me though as more hotter than pre existing poly cover.

Helpful?

24 April 2026Nydcb

King doesn’t fit

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I have a king size mattress so I bought the king size mattress protector but it unfortunately it is just too big. It doesn’t have a snug fit so it’s not usable at all, unfortunately. The cotton finish is what I want and seems good quality but unfortunately it’s not a mattress cover that fits, so it’s not usable. I’m really disappointed.

Reviewer Ratings

Comfort

Poor

Helpful?

Reviewer Ratings

Comfort

Poor

08 April 2026Biddyboo12

Okay but could be better.

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Very thin and flimsy glad I bought it when it was on sale.

Helpful?

06 April 2026Sleepy Bunny

Pure cotton comfort

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I absolutely love this pure cotton mattre protector,I had been looking for 100% cotton one and so glad I found it in M&S. Its cool and doesnt make you sweaty like polyester ones do. Generous fit so it will be fine if you have a deep mattress.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

03 April 2026Arnie Sue and Bob too

A bit thin

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Not as thick as my last one made by a company that is never knowingly undersold. Very underwhelming in thickness. Its size is all wrong too, the top area is massive. I think it would fit a Scandinavian double as the length far exceeds the bed.

Reviewer Ratings

Comfort

Average

Helpful?

Reviewer Ratings

Comfort

Average

31 March 2026Wingloss

Mattress protector

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Good quality but is too big and my bed is big super king as my husband is 2 meters tall! Is not tight around the conners and it moves, very unhappy but kept it as I needed a set.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

27 March 20262Catwoman

Lovely material

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Mattress cover is a nice fabric, fits and washes well

Helpful?

23 March 2026Ursula89

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

It fits the bed well and I like the cotton material.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

18 March 2026AW333

Good value and qualilty mattress protector

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I was very fortunate that I was able to buy this in the sale with a significant reduction in price. Appears to be a quality item and fits my new 26cm mattress well.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 March 2026happyredhead24

Great Mattress cover.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought this to replace my old cover , very happy with it , it covers all the mattress . I found it quite along time to dry as it is so thick but as it is great quality. 😊

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

06 March 2026Tessa05

Disappointed with Purchase

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I'm very disappointed with this mattress protector. I measured my mattress carefully before shopping to make sure that I got the correct size, and although the quilted top is good quality, the skirt is very loose and doesn't fit my mattress well at all, which is obviously unsatisfactory. The description on the packaging tells me that I have the correct size but it doesn't look like it!

Reviewer Ratings

Comfort

Average

Helpful?

Reviewer Ratings

Comfort

Average

02 March 2026T555

Great item

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely cotton product just what I wanted unfortunately some glue from the card package has stuck in the product but seemed ok after washing.

Helpful?

01 March 2026FORTUNA166

Great Quality !!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Excellent quality and sensibly priced. It is a straight replacement for one we have had for a few years

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

27 February 2026Posyrosie

Quality is thin

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Thinner than I was expecting, basically 3 layers of cotton sheeting - rather disappointing.

Helpful?

07 February 2026Eme Pye

Great quality!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Superb quality cotton mattress protector, which washes very well. I would definitely buy this again.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

30 January 2026Blackdress

Feels lovely!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Feels good, quality is good and washes well. The only downside for me is the excess material on the sides but I guess this is for deeper mattresses

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 January 2026Pastryqueen

Cotton mattress protector

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality, but ‘standard’ is too deep to fit my mattress neatly. Was replacing like for like or so I thought but this one is much deeper …… hopeful that being cotton it will perhaps shrink a little?.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

22 January 2026InfoBear

Very good quality at reasonable price.

Originally posted on marksandspencer.com (UK)

Good quality cotton mattress protector. Nice quilting, fitted very well. Washed first and no shrinkage. Will get another one too for spare when washing first one.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

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