Cotton Extra Deep Mattress Protector

From £29,50
Size out of stock
From £29,50

We only list UK sizes. If you're not sure what your UK size is, please click on ‘Size advisor’ or review our size guides.

Size guide

Wonderfully soft and cosy, this pure cotton mattress protector offers an extra indulgent layer to sink into. Providing an added layer of protection to your mattress, while keeping it from discolouring and usual wear and tear, it’s easily machine washable for a convenient and more hygienic sleep while prolonging your mattress’s life. Created with sustainable cosy cotton, our extra deep mattress protector brings an additional layer of comfort to your bed, completely freshening up your room.

  • Product ID: T35/1800M

    Item details

    • Protects and prolongs the life of your mattress cover
    • 100% cotton,Filling- 95% cotton, 5% mixed fibres
    • Keep away from fire and flames
    • Machine washable
    • Tumble dry
  • 35 days to return

    You may return unused products within 35 days of purchase with a valid parcel summary document. Your items don't need to be in the original box or bag as long as they're securely packaged.

    How to return

    Free returns to select M&S stores.
    Hassle-free returns from home. Simply print the returns label, attach it to the top of your parcel and insert the returns note in the parcel. We will automatically deduct the cost of return from your refund.
    To print the returns label and return, simply click here.

    Tell me more about how to return items and the returns policy

    Free delivery to your nearest store: within 3-4 working days
    Standard Delivery: FREE over £50 (normally £3.50); within 3-4 working days.

Cotton Extra Deep Mattress Protector is rated 4.0 out of 5 by 31.
Rated 5 out of 5 by from Good mattress cover Great at last to find a good quality mattress cover that still fits the mattress after washing So many shrink so much in the wash that they no longer cover the sides of the mattress. This started big now perfect after laundering. Nice quality thick cotton including the sides and deep enough for my extra thick mattress. Very pleased
Date published: 2019-04-16
Rated 5 out of 5 by from Qualty Sleep You can't beat cotton when it comes to bed linens. The quality of this product is very good. Sometimes the sides of mattress covers are compromised, but not the case in this instance. Washes well too.
Date published: 2018-12-11
Rated 1 out of 5 by from Do not buy this item Bought this protector as it was 100% cotton. It was to protect my m&s mattress that is super king . The quilted top is nowhere near the correct size, it is far too big therefore overhangs the sides making the skirt impossible to fit . I have noticed that several other people have had exactly the same complaint and can’t understand why this item is still for sale. Not the service I expect for m&s.
Date published: 2018-08-23
Rated 1 out of 5 by from Don’t bother According to the blurb it should have been perfect for my new 28cm deep mattress so had no qualms ordering it. The quilted top was approx 5cm+ too long. Apart from that, the skirt which surrounds and tucks under the mattress and is edged with elastic, was so hopelessly baggy. I don’t understand how/why M &S buyers make such a mistake with something which is very basic.
Date published: 2018-04-24
Rated 1 out of 5 by from Deep Mattress Cover Poor quality and the elastic is not adequate to keep the cover on the bed as its too loose !!
Date published: 2018-10-15
Rated 3 out of 5 by from Rather large but cetsinly deep I bought this as I already use a memory foam.mattress topper and needed a deep skirt. The skirt is indeed deep enough but the size of the actual quilted area I. E.the top, is much larger than our double bed. I hope that there is some shrinkage when it is washed.
Date published: 2018-11-04
Rated 5 out of 5 by from Good quality and good fit. Very pleased with quality and fit. Don’t understand other reviews saying it’s too big. I washed at 40 degrees and tumble dried before use and it fits my king size bed perfectly. Lovely deep sides which fit my deep mattress with topper. Would recommend.
Date published: 2019-02-21
Rated 5 out of 5 by from All Cotton Protector Nice to find an all cotton mattress protector. Good fit on deep mattress, well made. Not padded as it is a protector not a topper as some people may expect. Keeps me cooler than man-made materials used in most protectors, pleased with purchase.
Date published: 2018-04-13
  • y_2019, m_6, d_19, h_24
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_31
  • loc_en_GB, sid_P60137762, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_marksandspencer-flagship
  • bvseo_sdk, dw_cartridge, 16.1.1, p_sdk_3.2.0
  • CLOUD, getContent, 151ms
  • reviews, product