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Pure Cotton Waterproof Extra Deep Mattress Protector

Product code: T351126M

Crafted from pure cotton jersey with a waterproof finish, this fitted mattress protector will keep your mattress fresh and dry. It's made in an extra deep design to fit mattresses up to 38cm deep, helping it to stay in place throughout the night.

Product details

Item details

Fits mattresses up to 38cm deep

Waterproof

Safety Warning

Keep away from fire and flames

Composition

100% cotton, Outer - 100% cotton, Backing (of a mattress protector) - 24% polyurethane, 76% polyester, Skirt - 100% polyester

Care

Wash at 40°C

Do not bleach

Tumble dry low temperature

Do not iron

Do not dry clean

M&S

Pure Cotton Waterproof Extra Deep Mattress Protector

€24 - €47

Colour

Out of stock online

Size

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Free standard delivery over €75

Reviews (6)

5.0

83% Recommended this product

Mentions
18 April 2026bensays

Stops sweat!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

It just works brilliantly — great fit, protects the mattress from night sweats (it happens)

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

17 April 2026Annamarie

A good mattress cover

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This fits the king size mattress well and it is soft and comfortable to sleep on.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

31 March 2026mav35

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very good and meets all expectations. Very good and meets all expectations

Helpful?

15 March 2026Raff75

Great

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Super product. Really comfortable. Too early to tell if it protects the mattress

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

14 March 2026ArthursMomma

Perfect!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This replaced another waterproof mattress protector that had started to wear out from washing, but think this is even better than the last one. I’ve been using a waterproof protector to protect my mattress from my menopausal hot sweats in the night and it really is saving my mattress - I think it might even be keeping me cooler too, as my mattress has a topper that is made of wool and is more warming than cooling! The mattress protector fits well, has a lovely jersey top rather than a cotton, and washes really well too. I think it dries much more quickly in the tumble too. I’d would highly recommend if needing something to protect mattresses.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

08 March 2026E_j_28

Great quality

Originally posted on marksandspencer.com (UK)

Nice mattress cover, good quality, comfortable, waterproof

Helpful?