Bring refined comfort and timeless elegance to your bed with our 450 Thread Count Pima Cotton Flat Sheet, a classic essential elevated through exceptional materials and thoughtful design. Ideal for those who value a beautifully dressed bed and a smoother, more breathable sleep experience, this flat sheet adds both comfort and practicality to your nightly routine.
Woven from 100% pure Pima cotton, renowned for its extra-long staple fibres, this sheet delivers a noticeably silkier feel with impressive durability. The fibres are carefully combed and woven from single-ply yarns to achieve a true 450 thread count sateen finish, resulting in a fabric that feels smooth, fluid and indulgently soft against the skin. Naturally moisture-absorbing and temperature regulating, it helps maintain a balanced sleep environment throughout the night.
Versatile in use, this flat sheet can be styled as a base sheet to achieve crisp hospital corners, or used as a top sheet to add a breathable layer between you and your duvet helping regulate warmth while protecting your duvet cover. If you prefer a longer, more relaxed drape, simply choose one size larger than your mattress.
Available in a range of sizes and colours, this flat sheet offers lasting luxury that looks beautiful, feels indulgent and washes effortlessly.
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.
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.
| Flat Sheet | W (cm) | L (cm) |
| Single | 178 | 254 |
| Double | 229 | 254 |
| King Size | 259 | 269 |
| King/Super King | 275 | 275 |
| Super King | 305 | 269 |
| Emperor | 355 | 295 |
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
The sheets receive positive feedback for their quality and feel, with many appreciating the softness and attractive lustre. Several users note the fabric’s pleasant texture and overall comfort, highlighting it as a good match for their needs. Fit is generally well-regarded, though some customers with extra-deep mattresses find sizing a challenge, occasionally opting for larger flat sheets to accommodate their bedding. While durability and washing performance are not frequently mentioned, the consistent praise for the material’s quality suggests satisfaction in these areas. Overall, the product is viewed as a reliable and well-crafted option, with minor sizing considerations for those with particularly deep beds.
AI-generated summary of customer reviews
Your Reviews ![]()
Christopher Erith Davies
Sunday, 26 April 2026
Great product. Great service. Thank you.
Chris Saunders
, Belledorm
28 April 2026 22:06
Hello Christopher,
We are so glad to hear you had a great experience with our product and service. Thank you for your kind feedback!
Kind regards,
Chris Saunders
Belledorm
Andrew Mitchell
Friday, 04 July 2025
Superb sheet, just what we wanted. Exceptional delivery
Chris Saunders
, Belledorm
09 July 2025 10:42
Hello Andrew,
Thank you for your wonderful feedback on our Pima Cotton 450 Count Flat Sheet in Ivory Emperor. We're thrilled to hear you're pleased with your purchase. We appreciate you taking the time to share your experience.
Kind regards,
Chris Saunders
Belledorm
Ian McFadden
Wednesday, 25 June 2025
Only been on a few days but can't fault it, got a nice feel to it.
Chris Saunders
, Belledorm
26 June 2025 14:52
Hi Ian,
Thank you for your positive feedback on the Pima Cotton 450 Count Flat Sheet Platinum Single. We're pleased to hear you're enjoying it. We appreciate you sharing your thoughts and most of all we hope you sleep well.
Kind regards,
Chris Saunders
Belledorm
Cheryl grainger
Monday, 24 February 2025
Chris Saunders
, Belledorm
27 February 2025 21:42
Hello Cheryl,
Thank you for your wonderful 5-star review of our Pima Cotton 450 Count Flat Sheet in Platinum King Size. We're thrilled you're happy with it! We appreciate you taking the time to share your feedback.
Kind regards,
Chris Saunders
Belledorm
Adele Tredree
Sunday, 19 January 2025
Chris Saunders
, Belledorm
21 January 2025 17:11
Hello Adele,
Thank you for your four-star review of our Pima Cotton 450 Count Flat Sheet in Ivory Super King. We appreciate hearing from our customers and value your feedback.
We hope you continue to enjoy your new sheet.
Kind regards,
Chris Saunders
Belledorm
Trusted Customer
Friday, 13 December 2024
We struggle to find a sheet big enough for our bed as it's so deep with mates topper none of the extra deep fit so had to go for flat sheet instead and size bigger but quality is lovely
Chris Saunders
, Belledorm
18 December 2024 15:32
Thank you for your feedback on our Pima Cotton 450 Count Flat Sheet Platinum Emperor. We appreciate you letting us know about the sizing challenges you faced and delighted you could find a product that would work. We value your business. We hope you sleep well.
Sincerely,
Belledorm
Trusted Customer
Thursday, 01 September 2022
Just gorgeous, a beautiful lustre
The Belledorm Team
, Belledorm
01 September 2022 15:07
Thank you for your 5 star review. We are glad you like the feel of our Pima cotton.
Trusted Customer
Monday, 08 August 2022
The Belledorm Team
, Belledorm
16 August 2022 09:39
Thank you for your 5 star review of our Pima Cotton 450 flat sheet.
Platinum trusted service award
