A supremely soft, smooth and silky range of linens made from natural and breathable pure 100% cotton. The sateen weave of tightly packed yarns gives the linens a fine lustre. Luxury for every day.
This Cotton Sateen 300 count Extra deep fitted sheet has a depth of 38cm (15 inches). This sheet is available in a range of sizes.
As mattresses get deeper with the addition of mattress toppers, protectors, we need sheets to allow for a good snug fit and avoid the common problem of sheets coming off during the night. We recommend this fitted sheet to sit 8cm (2-3 inches) deeper than your mattress. Our fitted sheets are generously elasticated around all 4 corners leading to a solid hold and fit on your mattress. This fitted sheet is suitable for mattress depths up to 30cm (12 inches).
So long as you purchase the correct size of width and length then depth doesn't have to be exact, as any extra fabric tucks underneath the mattress, hence why we recommend taking a slightly larger depth than what your mattress measures.
Machine washable at 40°C. Do not bleach. Do not dry clean. Tumble dry or drip dry. Use a warm iron. Wash colours separately. Wash before use.
Made from the finest selected pure 100% cotton. Natural and breathable.
Buy with confidence. Under normal domestic use this product is guaranteed for 7 years.
Designed with deeper sides. No more struggling to get your sheet on.
38cm
Woven sateen to create a lustrous sheen and silky feel.
| Fitted Sheet | W (cm) | L (cm) |
| Narrow Single/Bunk | 75 | 190 |
| Long Narrow Single | 75 | 200 |
| Single | 90 | 190 |
| Long Single | 90 | 200 |
| Small Double 4FT | 120 | 190 |
| Double | 135 | 190 |
| King Size | 150 | 200 |
| Super King | 180 | 200 |
| Emperor | 200 | 200 |
| Large Emperor | 215 | 215 |
Delivering A Good Night’s Sleep For Free
- UK Standard 48hr Tracked - £2.95, free on orders over £50
- UK Next Day Tracked - £4.95 - Order before 3.30pm Mon-Fri
- EU Delivery - £19.95
- Rest of the World - £75
- Free UK Returns on any unused product(s) in its original packaging and re-saleable condition within 30 days of receipt
- To find out how to get a Freepost returns label click here
What our customers say
Reviews generally highlight the sheets’ softness, generous fit, and overall quality, with many customers appreciating their cool, comfortable feel and deep pockets that fit mattresses well. The sateen finish is often noted for adding a luxurious touch, making the fabric feel smoother and more substantial than expected. Washing performance is also positively mentioned, with the bedding maintaining its appearance and feel over time. Service experiences are consistently praised for being helpful and efficient. However, a few customers have expressed concerns about the cotton feeling thinner than anticipated and questioned the durability despite the warranty offered. While the majority find the sheets excellent value and quality, some suggest considering higher thread counts for future purchases.
AI-generated summary of customer reviews
Your Reviews ![]()
susanne READ
Saturday, 11 April 2026
The customer service went beyond excellence.
The sheets are very good quality at superb prices.
Chris Saunders
, Belledorm
12 April 2026 22:13
Hello Susanne,
We are so pleased to hear that you had an excellent experience with our customer service and that you are happy with the quality and price of the sheets. Thank you for your wonderful feedback.
Kind regards,
Chris Saunders
Belledorm
J L Bilton
Monday, 09 March 2026
Great quality sheets! Arrived on time. Very generous fit.
Chris Saunders
, Belledorm
18 March 2026 14:07
Hello,
Thank you for your positive feedback! We are delighted to hear you are pleased with your purchase.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Wednesday, 04 March 2026
I ordered both the double and king size and they are both lovely, but I will consider getting a higher than 300 cotton count for further purchases.
Chris Saunders
, Belledorm
04 March 2026 22:47
We are so pleased to hear that you love your purchase! Thank you for sharing your positive experience with us.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Wednesday, 04 March 2026
Happy with my first purchases to the point where I quickly made another new order.
I bought all items on Sale, which means incredible value for the quality and both orders were delivered for free within a few days!
I have already told my friends and family about Belledorm as they deserve the recommendation.
Chris Saunders
, Belledorm
04 March 2026 22:47
Thank you for your feedback. We are so pleased to hear that you are happy with your purchases and that you found them to be of great value. It's wonderful to know that your orders were delivered quickly and that you're recommending Belledorm to your friends and family.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Sunday, 22 February 2026
Although I haven’t tried these fitted sheets they feel lovely and I was very impressed with the service I received when I phoned. Unfortunately I can’t remember the gentleman’s name but he was extremely helpful and even though I phoned late on an afternoon my order was sent the same day. Well done.
Chris Saunders
, Belledorm
02 March 2026 22:37
Thank you for your feedback. We are pleased to hear of your positive experience with our team and the quality of the sheets.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Tuesday, 27 January 2026
Chris Saunders
, Belledorm
30 January 2026 21:03
Thank you for taking the time to share your feedback. We appreciate you taking the time to let us know.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Friday, 02 January 2026
Excellent service and quality
Chris Saunders
, Belledorm
04 January 2026 22:00
We are delighted to hear you had such a positive experience with our service and quality.
Kind regards,
Chris Saunders
Belledorm
Colin Campbell
Wednesday, 24 September 2025
Excellent product at an excellent price, delivered quickly. Have bought from Belledorm previously and expect to do so again.
Chris Saunders
, Belledorm
28 September 2025 12:23
Hello Colin,
Thank you for your wonderful feedback! We are delighted to hear that you had such a positive experience with our Cotton Sateen 300 Count Extra Deep 38cm Fitted Sheet White Double. We appreciate your kind words and your loyalty to Belledorm.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Saturday, 13 September 2025
beautifully soft and cool. Unlike many others these sheete really are deep so no struggling to fit over mattress.
Chris Saunders
, Belledorm
16 September 2025 13:04
We are delighted to hear that you are enjoying the Cotton Sateen 300 Count Extra Deep 38cm Fitted Sheet. It's wonderful to know that you found the sheets soft and cool. We appreciate you taking the time to share your positive experience with us.
Kind regards,
Chris Saunders
Belledorm
Nickie Griffin
Thursday, 14 August 2025
Soft. luxurious and easy to.iron
Chris Saunders
, Belledorm
26 August 2025 11:47
Hello Nickie,
Thank you for your wonderful feedback on our Cotton Sateen 300 Count Extra Deep 38cm Fitted Sheet in Platinum King. We're thrilled you find it soft and luxurious. We appreciate you taking the time to share your positive experience.
Kind regards,
Chris Saunders
Belledorm
MRS BRIDGET OLDS OLDS
Saturday, 09 August 2025
Lovely beeding that lasts and washes well
Chris Saunders
, Belledorm
12 August 2025 12:53
Dear Bridget,
Thank you for your wonderful feedback on our Cotton Sateen 300 Count Extra Deep 38cm Fitted Sheet in White Super King. We're thrilled to hear you find it lovely and that it washes well. We appreciate you taking the time to share your experience.
Kind regards,
Chris Saunders
Belledorm
Karen Lynn
Sunday, 06 October 2024
Chris Saunders
, Belledorm
08 October 2024 11:00
Thank you for your 5 star review of our Cotton Sateen 300 Count Extra Deep Fitted Sheet.
Trusted Customer
Sunday, 06 October 2024
Great quality excellent service
Chris Saunders
, Belledorm
07 October 2024 16:22
Thank you for your wonderful 5 star review of our Cotton Sateen 300 Count Extra Deep fitted sheet, we are delighted to hear you like our quality of this fabric.
Trusted Customer
Friday, 02 August 2024
Brought this make of sheet before but this sheet is super shiny and cotton feels very thin. Says 7 year warrenty will be suprised if they last that long
Nicola Watt
Monday, 27 May 2024
Great quality. Washes well. Cool and comfortable. Would definitely recommend.
Chris Saunders
, Belledorm
31 May 2024 11:24
Thank you for your 5 star review of our Cotton Sateen 300 Count Extra Deep Fitted Sheet, we are delighted to hear that it washes well and the sheet is cool and comfortable to sleep on.
Jane Dale
Tuesday, 07 November 2023
Good fit and lovely feel.
The Belledorm Team
, Belledorm
13 November 2023 17:53
Thank you for your wonderful 5 star review of our Cotton Sateen 300 Count Extra Deep Fitted Sheet. We are delighted you like the fit and feel.
Trusted Customer
Tuesday, 26 September 2023
Excellent sizing and quality
The Belledorm Team
, Belledorm
19 October 2023 15:43
Thank you for your wonderful 5 star review of our Cotton Sateen 300 Count Extra Deep 38cm Fitted Sheet. We are delighted to hear you like the sizing and quality.
Trusted Customer
Sunday, 09 July 2023
The Belledorm Team
, Belledorm
17 July 2023 15:56
Thank you for your wonderful 5 star review of our Cotton Sateen 300 Count Extra deep 38cm Fitted sheet.
Timothy Eagles
Monday, 20 February 2023
Good fit for a deep matress, quality item.
The Belledorm Team
, Belledorm
06 March 2023 11:47
Thank you for your wonderful Cotton Sateen 300 Count Extra Deep 38cm Fitted Sheet. We are delighted to hear that it's a good fit and good quality.
Claire
Sunday, 01 January 2023
Sateen finish makes this feel a higher thread count than it is making it very comfortable. Really good value.
The Belledorm Team
, Belledorm
10 January 2023 14:35
Thank you for your wonderful 5 star review of our Cotton Sateen 300 count extra deep fitted sheet.
Platinum trusted service award