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Stay Cool Mattress Protector

Product code: T353026M

Designed to help regulate temperature, this Stay Cool mattress protector brings breathable comfort to your bed. The smooth cotton outer promotes airflow, making it ideal for warmer nights. Light quilting adds a subtle layer of cushioning without bulk. An elasticated skirt fits securely over your mattress to create a neat, stay-put finish. Fits mattresses up to 30cm depth

Product details

Item details

Fits mattresses up to 30cm depth

Cooling

Safety Warning

Keep away from fire and flames

Composition

100% Cotton, Outer - 100% cotton, Filling - 100% polyester, Backing - 100% polypropylene, Skirts - 100% polyester

Care

Wash at 40°C

Do not bleach

Tumble dry low temperature

Do not iron

Do not dry clean

M&S

Stay Cool Mattress Protector

€40 - €68

Colour

Size

Free standard delivery over €75

Reviews (207)

4.4

68% Recommended this product

Mentions
07 August 2026Sands80

Very good

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very good mattress protector, really happy with this purchase. It keeps me cooler thanks to the cotton mix fabric and I am able to sleep better at night.

Helpful?

29 July 2026Les2026

Slightly too short

Originally posted on marksandspencer.com (UK)

Slightly too short for our new adjust a bed mattresses

Helpful?

28 July 2026MoominLuu

Seems to work

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality as expected from M&S does seem to aid with keeping a comfortable temperature on the hot nights we’ve had recently. Feels good under the cooling bedding range

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

27 July 2026JAM7865

Brilliant

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great mattress protector, fits perfectly and doesn’t move.

Helpful?

24 July 2026Mo M

Stay Cool Mattress Protector

Originally posted on marksandspencer.com (UK)

I bought this during the latest heatwave. It does appear to help but the real test will be when the temperatures drop a bit. Time will tell

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

22 July 2026Alli P

Great, cool mattress protector

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really good, comfortable mattress protector and they keep you cool. Highly recommend

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

22 July 2026MichaelsMother

Excellent product

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought this in desperation as the mattress cover that was in situ seemed to be creating even more heat during this relentless heatwave! Wow! What a relief this mattress cover has been. Certainly a huge improvement and much more comfortable for sleeping.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 July 2026Davy C

Good fit covers

Originally posted on marksandspencer.com (UK)

These were bought for guest beds and seem very good. They fit well with plenty of room for deep mattresses. I can't say too much more as they haven't yet been slept on yet.

Helpful?

19 July 2026meadowrose

Good quality

Originally posted on marksandspencer.com (UK)

Well fitting stay cool mattress protector. Works well.

Helpful?

18 July 2026Snowy0475

Top class

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Fits perfectly king size, does not move, yes l would buy again

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

18 July 2026DDIL

No cooling implant

Originally posted on marksandspencer.com (UK)

Fine as a mattress protector but I don’t get any cooling impact so makes for an expensive mattress protector

Reviewer Ratings

Comfort

Average

Helpful?

Reviewer Ratings

Comfort

Average

14 July 2026MBenj

Happy with this item.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This item is a little bit thinner than I was expecting, but I'm happy with it. I wanted a protector for my guest bedroom that I can easily pop in the washing machine as my existing one is thick down and needs to go to the dry cleaners to be washed. This is a good price point. I'm not sure how effective the Stay Cool feature is, but that was a factor in my selection.

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

14 July 2026AlisonJayneW

Stay cool mattress protector

Originally posted on marksandspencer.com (UK)

I bought this to help me keep cool in bed during hot weather but sadly it’s no different to any ordinary protector

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

10 July 2026Beate

Mattress protector

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality mattress protector .soft and cool . Fits perfect .

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

07 July 2026pandamamma

A little thin maybe?

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Mattress cover is fine - not very thick, although that's probably why it is not too hot. Fine to protect a mattress.

Helpful?

02 July 2026GardenerBoy21

good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Replaced old one and this was ideal. Fitted well has the cooling effect I wished for

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

27 June 2026Bestone

Happy Choice

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for my son, says he is happy with the Mattress Protector, though bought similar in the past, from another branded store, and the backing started to disintegrate over time, time will tell with this item from M&S.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 June 2026LorH

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

It is well made and having washed it once it came out perfectly with no shrinkage

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

20 June 2026Teltels

Good quality cover

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Exactly what I needed for a comfortable night sleep

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

10 June 2026NinjaAngie

Good quality mattress protector

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought this to protect our new mattress. It fits perfect, doesn’t slide about and comfortable.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

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