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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

Online only

Pure Cotton Mattress Protector

€33 - €52

Colour

Size

Also available in: Extra Deep Protector
Free standard delivery over €75

Reviews (608)

4.3

69% Recommended this product

Mentions
10 June 2026Bottom49

Mattress cover

Originally posted on marksandspencer.mom (UK)

Yes, I recommend this

Bought for guest bed. Absolutely fine, does the job perfectly

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

09 June 2026LMM1234

Feels good but sizing an issue

Originally posted on marksandspencer.mom (UK)

Yes, I recommend this

The cotton of this has a nice feel, and it has made the bed feel more comfortabel to sleep on. It did wrinkle with washing - ironing it may help but life is too short to be ironing a mattress cover. My main con is the sizing - I got a double, to go on a single short length bed, planning to alter it. After washing, the length fitted my bed, so it would be too short on a normal bed. I'm glad I got a double not a single, so it wasn't too narrow. It does wrap around the sides of the single mattress, which is what I wanted, it's thin enough that this doesn't cause issues.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

07 June 2026Dididumdum

Good product.

Originally posted on marksandspencer.mom (UK)

Good cotton protector. Its not as thick I anticipated but it will do the job. The skirt is nice and thin and tucks under our mattress nicely. I havent needed to wash it yet, so can't comment on shrinkage.

Helpful?

06 June 2026AdamSL

Nice

Originally posted on marksandspencer.mom (UK)

Yes, I recommend this

Was slightly nervous about ordering this due to some of the other reviews. No issues though. We have a king sized bed which is 27cm deep and this fits well. Very comfortable and seem good quality. Not used it high heat yet so will see how that goes.

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

06 June 2026A610

Excellent 100% cotton - great buy!

Originally posted on marksandspencer.mom (UK)

Yes, I recommend this

Very hard to find 100% cotton, repeat buy as excellent product!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

31 May 20267Marty58

Pure Cotton Mattress Protector

Originally posted on marksandspencer.mom (UK)

No, I don't recommend this

Way too big for a 30cm mattress and doesn't fit snugly on the bed like my last one. Shame as otherwise it's well made

Reviewer Ratings

Comfort

Fair

Helpful?

Reviewer Ratings

Comfort

Fair

07 May 2026John77777

Too big and useless

Originally posted on marksandspencer.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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.mom (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?

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