Enjoy a flawless fit and indulgent comfort every night with our 450 Thread Count Pima Cotton Extra Deep Fitted Sheet. Designed for modern, deeper mattresses, this sheet solves one of the most common bedding frustrations, fitted sheets that pull loose, ride up, or simply don’t fit properly once toppers and protectors are added.
Crafted from 100% pure Pima cotton, prized for its extra-long staple fibres, this fitted sheet delivers exceptional smoothness, strength and durability. The fibres are carefully combed and woven from single-ply yarns to create a true 450 thread count sateen fabric. The result is a beautifully smooth, lustrous finish that feels silky against the skin while remaining breathable, moisture-absorbing and temperature regulating, ideal for comfortable sleep all year round.
Available in a range of sizes and colours, this fitted sheet has a full depth of 38cm (15”), designed to fit mattresses up to 30cm (12”) deep. The extra depth ensures a perfect, no-pull-out fit. We recommend fitted sheets to sit 8cm (2”-3”) deeper than the total thickness of your mattress (+ any topper), with any extra fabric held tidily underneath the mattress.
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
Cultivated long fibres of high quality cotton.
Woven from nature's own fibres. Sustainable and renewable.
Naturally breathable bedding which promotes airflow, enhancing comfort by regulating temperature and reducing moisture.
Soft as a cloud for extra comfort.
The packaging for this product is recyclable and made from materials that can be re-used. Once opened, just pop it in your home recycling! We can all do our bit to help the environment.
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 reflect a generally positive impression of the bedding’s quality and customer service, with many highlighting the smooth, silky feel of the fabric and the generous fit of the fitted sheet. The Pima 450 count cotton is frequently praised for its softness and durability, and customers appreciate the professional and attentive support they receive. Washing performance is noted as satisfactory, with the fabric maintaining its texture after laundering. However, a recurring concern is the texture difference between this fitted sheet and other Pima cotton products, with some finding it rougher than expected. While overall satisfaction is high, this contrast in fabric feel suggests some variability that potential buyers may want to consider.
AI-generated summary of customer reviews
Your Reviews ![]()
Miss Melanie Skivington
Friday, 13 March 2026
Fantastic quality bedding and outstanding customer service. Nothing is ever too much trouble, and every query was handled quickly and with care. You can tell this is a company that genuinely values its customers. Will definitely be ordering again and would highly recommend.
Chris Saunders
, Belledorm
18 March 2026 15:24
Hello Melanie,
Thank you for your kind words. We are so pleased to hear that you are happy with the quality of our bedding and the service you received. We appreciate your recommendation and look forward to your next order.
Kind regards,
Chris Saunders
Belledorm
Susan Miles
Wednesday, 11 March 2026
I have to say I was quite disappointed with my purchase! I already have a pima cotton top sheet and was looking forward to sliding in between it and the new fitted sheet. But the new fitted sheet is far rougher than I expected - the difference between the two is quite noticeable.
Chris Saunders
, Belledorm
18 March 2026 14:18
Hello Susan,
I understand your disappointment. I am sorry to hear that the fitted sheet wasn't quite what you were expecting. Please note that with every wash the fabric will soften.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Friday, 23 January 2026
Chris Saunders
, Belledorm
30 January 2026 20:39
We're so pleased to hear you had a positive experience. Thank you for your 5 star rating.
Kind regards,
Chris Saunders
Belledorm
Toshka Delaye
Saturday, 01 November 2025
Chris Saunders
, Belledorm
04 November 2025 09:31
Hello Toshka,
Thank you for your fantastic review! We are so pleased to hear you are enjoying the product.
Kind regards,
Chris Saunders
Belledorm
Arthur Davies
Monday, 06 October 2025
The Pima 450 count is excellent quality. I would recommend 100%.
I also had the opportunity to speak to someone from their office which was extremely helpful and very professional.
Chris Saunders
, Belledorm
06 October 2025 08:51
Hello Arthur,
We are delighted to hear you had such a positive experience with our Pima Cotton 450 Count Fitted Sheet. It's wonderful to know you were pleased with the quality and that you found our team member helpful. We truly appreciate your recommendation.
Kind regards,
Chris Saunders
Belledorm
Simon
Wednesday, 17 September 2025
Excellent customer service, especially when unravelling a customer muddle.
Chris Saunders
, Belledorm
18 September 2025 12:03
Hello Simon,
We are very pleased to hear that you were happy with the customer service you received.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Friday, 14 February 2025
Washed and dried well. Smooth and silky fabric. Tucks under well on sides and corners.
Chris Saunders
, Belledorm
19 February 2025 20:44
Thank you for your wonderful review of our Pima Cotton 450 Count Extra Deep 38cm Fitted Sheet. We're thrilled you're happy with it. We appreciate you taking the time to share your positive experience. We hope you sleep well.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Friday, 25 October 2024
Chris Saunders
, Belledorm
29 October 2024 09:35
Hello,
Thank you for taking the time to leave us a five-star review on our Pima Cotton 450 Count Extra Deep 38cm Fitted Sheet. We're thrilled to hear you're happy with your purchase. We appreciate your feedback.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Friday, 27 September 2024
Very pleased with fitted sheet. It is very generously proportioned and fits the mattress with room to tuck in all round
Chris Saunders
, Belledorm
01 October 2024 14:32
Thank you for your wonderful 5 star review of our Pima Cotton 450 Count Extra Deep Fitted Sheet, we are delighted that you're happy with the size and quality of our luxury pima cotton.
Simon Rossi
Friday, 31 May 2024
Excellent quality product for a reasonable price.
Chris Saunders
, Belledorm
12 June 2024 13:33
Thank you for your wonderful 5 star review of our Pima Cotton 450 Count Extra Deep 38cm Fitted Sheet, we are delighted you like the quality and price of this product.
Lee Barlow
Wednesday, 14 February 2024
Chris Saunders
, Belledorm
15 February 2024 13:17
Thank you for your wonderful 5 star review of our Pima Cotton 450 Count Extra deep fitted sheet.
Trusted Customer
Thursday, 13 April 2023
Very good quality product.
The Belledorm Team
, Belledorm
13 April 2023 16:32
Thank you for your wonderful 5 star review of our Pima Cotton 450 Count Extra Deep fitted sheet, we are delighted you like our quality.
Linda Cotterill
Monday, 13 March 2023
Excellent and beautiful quality
The Belledorm Team
, Belledorm
14 March 2023 15:52
Thank you for your wonderful 5 star review of our Pima Cotton 450 Count Extra Deep Fitted Sheet, we are delighted to hear you like the quality.
Trusted Customer
Wednesday, 18 January 2023
Great quality, beautiful feel to fabric and well made
The Belledorm Team
, Belledorm
23 January 2023 16:16
Thank you for your wonderful 5 star review of our Pima Cotton 450 Count Extra deep fitted sheet, we are delighted to hear that you like our quality and the feel of the fabric. We hope you sleep well.
Trusted Customer
Monday, 16 January 2023
For service and quality. .
The Belledorm Team
, Belledorm
19 January 2023 15:55
Thank you for your 5 star review of our Pima Cotton 450 Count Extra deep fitted sheet.
Trusted Customer
Thursday, 01 September 2022
The Belledorm Team
, Belledorm
01 September 2022 15:07
Thank you for your 5 star review.
Trusted Customer
Friday, 19 August 2022
Lovely satin feel don’t know how it’ll wash
The Belledorm Team
, Belledorm
22 August 2022 14:03
Thank you for your positive 5 star review of our Pima Cotton 450 extra deep sheet, this range washes very well providing washing instructions are followed. We hope you sleep well.
Julia
Thursday, 12 May 2022
Excellent quality. Someone recommended this particular one and it’s well worth the money.
The Belledorm Team
, Belledorm
13 May 2022 12:12
Thank you for your wonderful positive 5 star feedback of our Pima Cotton 450 Extra deep sheet, we love this range and delighted it was recommended to you. We hope you sleep well.
Platinum trusted service award
