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Ultimate Comfort 6cm Mattress Topper

Product code: T354241T

Improve your sleep with this Ultimate Comfort mattress topper featuring a quilted design for even support. The pure cotton percale cover with 230 thread count offers natural breathability for a cooler night's rest. Secure elastic straps keep it firmly in place on your mattress, while forever fibres maintain its plush feel night after night.

Product details

Item details

230 thread count

Safety Warning

Keep away from fire and flames

Composition

Outer 100% Cotton, Filling 100% Polyester

Care

Do not wash

Do not bleach

Do not tumble dry

Do not iron

Do not dry clean

M&S

Ultimate Comfort 6cm Mattress Topper

€115 - €155

Colour

Size

Free standard delivery over €75

Reviews (28)

4.4

79% Recommended this product

Mentions
02 September 2026Jillybean57

Great Topper

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very comfortable and has helped alleviate hip pain. Bought when on offer,so also great value

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

29 August 2026Sunnyfay

M and S Mattress Topper

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This is a good quality product which will enhance a sofa chair bed.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

24 August 2026Jpd66

fits my super king mattress. Bought it for my own

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very comfortable and fits my bed. My superking bed well

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 August 2026ShoppingMamma

Luxurious.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very soft and comfortable a good purchase and not too bulky.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

18 August 2026gorgeousorchid

what I wanted/needed

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfortable topper, reasonable depth and spacing of filling, cotton cover, not washable, wipe clean only. Good value in the sale

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

15 August 2026MAM19

A great purchase.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

What a great mattress topper! Nice and thick. The fabric feels good and the overall shape is well defined. Looks and feels much more expensive than it was. It’s well worth the cost.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

15 August 2026Apricity

Change your mattress, dont bother with this topper

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

6cm of mostly air. might have bought a mattress protector thats non washable. I use this, but mostly because I am embarassed at having bought it [items such as this are non returnable]. I just cant fathom how it got the high reviews that it did. Very glad it was a sale item.

Reviewer Ratings

Comfort

Fair

Helpful?

Reviewer Ratings

Comfort

Fair

14 August 2026Nannynette

Great purchase!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I had been looking for a mattress topper to make our new firm mattress a bit softer, but I didn’t want anything too thick. This topper really fitted the bill, it fits perfectly and has made our mattress much more comfy, and the thick cotton cover means that it doesn’t make the bed hot. I’m very pleased that I bought it.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

14 August 2026MRCK

Good quality, great price - wrong time

Originally posted on marksandspencer.com (UK)

Bought this topper Ultimate Comfort 6cm Mattress Topper- as we have on another bed and was pleased with it - good quality and bought at a good price However we bought in the middle of the heatwave so like having a quilt underneath as well as on top (top one currently pushed off bed at night) - this is even with having a cotton fitted bottom sheet - probably should take off and wait for the colder weather - didnt factor in weather when buying

Reviewer Ratings

Comfort

Fair

Helpful?

Reviewer Ratings

Comfort

Fair

13 August 2026Devon E

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality and very comfortable, I have a good nights sleep

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 August 2026Welsh63

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I was looking for a mattress topper for my bed and this one was the right depth and it’s great to sleep on so comfortable

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 August 2026Kobo

Great Quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought to replace old topper. This is thicker than my previous one and is comfortable,

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 July 2026Amle

Great service

Yes, I recommend this

Excellent product. Exactly as described. Very happy.

Helpful?

12 April 2026gardener1023

Good night's sleep

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought this on offer as I thought it was pricey....great quality....great night's sleep well worth it....

Helpful?

09 April 2026lebeck

Just what we needed.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely and comfortable. The only slight negative I have is the elastic bands on the corners, if you have a deep mattress they can shift occasionally. However, that does not detract from the fact it has made sleeping a lot more restful.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 March 2026Summa77

Good quality.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I am pleased with this topper. I wanted a synthetic one but not memory foam. I also wanted a good , quality pure cotton cover as they are cooler . I am very pleased with the cover as it is 230TC and thick. Unlike other ones I have had in the past it does not rustle or feel stiff ; it is soft. The topper has flattened slightly but I think that is to be expected. I am glad that I bought the 6cm depth , it is not too thick. The top is soft and supportive but does not have the " sink in " feel that " feels like down " toppers have. If you want that sensation another topper woud be better. At the same time I ordered the Luxury Down Alternative topper to compare the two which I am returning. This only had an 180TC cotton cover and although fine it is definitely inferior to the cover on this one. The Luxury Down Alternative felt much softer , spongier . It does have the " sink in " feel. In the past I have found " feels like down " toppers too hot in the summer which is one of the reasons I kept the Ultimate Comfort one. I do think that M&S do not give you enough information . I want to know what type of polyester it is .... clusterfibre , microfibre , hollowfibre etc. It also says that if the packaging is opened the topper is non returnable . This is very frustrating as there is only a small opening to feel the toppers through. I have small hands luckily. What I say about the Alternative to Down topper is what I could feel through the packaging as I was unable to take it out. I think the Ultimate Comfort one is worth paying extra for if you like a good , quality cotton cover .

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

12 March 2026Orderlost

Good quality.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought this to add a little height to my bed to help get in and out after a hip operation. It fits perfectly, adds height and softens my firm mattress.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

07 March 2026Annette 21

Disappointed

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I am afraid the topper was not suitable for us. Very limited padding.

Helpful?

22 February 2026ec68

Mattress topper

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great fit with elastic corner straps & comfortably thick.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

30 December 2025Mary Harker

The best topper for the price point on the market

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

A lovely topper. Fits the bed perfectly and you sink into it. Very comfortable. So much so I bought another one for another bed. Great price too for a superb product

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

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