What Size Is a Standard UK Double Fitted Sheet?
A standard UK double mattress measures approximately 4ft 6in wide by 6ft 3in long, or around 137 × 191cm. The fitted sheet must match the mattress width and length as well as its depth.
This category is intended for standard UK double mattresses. It is not designed for:
- 4ft small double mattresses
- 140 × 200cm European or IKEA double beds
- Extra-long double mattresses
- Adjustable double beds requiring specialist sheets
- King size mattresses measuring 5ft wide
Mattress dimensions can vary slightly between manufacturers, so check the actual width, length and depth before ordering.
Choose the Right Depth for Your Double Mattress
A deep fitted sheet needs to be deeper than the mattress so that sufficient material can reach underneath. Measure the complete mattress depth, including any protector or topper that will remain beneath the sheet.
| Measured Mattress Depth | Suggested Sheet Depth | Typical Use |
|---|
| Up to approximately 27cm | 35cm | Moderately deep double mattresses |
| Approximately 28–33cm | 40cm | Deep hybrid and pillow-top mattresses |
| Approximately 34–43cm | 50cm | Very thick mattresses and beds with toppers |
| Approximately 44–53cm | 60cm | Exceptionally deep and heavily layered beds |
If the complete measurement is close to the upper limit, choosing the next pocket depth will normally make the sheet easier to fit and provide more material underneath the mattress.
Double Deep Fitted Sheets in 35cm, 40cm, 50cm and 60cm
35cm Deep Double Fitted Sheets
A 35cm pocket is suitable for moderately deep double mattresses measuring up to approximately 27cm. It provides additional tuck-under without leaving excessive loose material.
40cm Deep Double Fitted Sheets
A 40cm or approximately 16-inch pocket is a popular choice for deep hybrid and pillow-top double mattresses. It is generally suitable for a complete mattress depth of approximately 28–33cm.
50cm Extra Deep Double Fitted Sheets
A 50cm or approximately 20-inch pocket is intended for very thick double mattresses and beds fitted with substantial toppers. It is generally suitable for a complete depth of approximately 34–43cm.
60cm Ultra-Deep Double Fitted Sheets
A 60cm or approximately 24-inch pocket is designed for exceptionally deep double mattresses and heavily layered beds. It is generally suitable for a complete depth of approximately 44–53cm.
How to Measure a Double Mattress
Take three measurements before choosing your fitted sheet:
- Width: Measure across the widest point of the mattress.
- Length: Measure from the head to the foot of the mattress.
- Depth: Measure from the bottom edge to the highest point.
Leave any mattress protector or topper in place when measuring the depth. These layers contribute to the total height that the fitted sheet must cover.
Do not rely only on the description “double”. A standard UK double, 4ft small double and 140 × 200cm European double all require different fitted sheet dimensions.
Deep Double Fitted Sheets for Mattress Toppers
A mattress topper can add several centimetres to the height of a double bed. This may make an ordinary fitted sheet too shallow even if it fitted correctly before the topper was added.
Measure the mattress, protector and topper together. For example, a mattress measuring 30cm combined with a 5cm topper has a complete depth of approximately 35cm. A 50cm fitted sheet would normally provide a more secure tuck-under than a 40cm sheet.
If you regularly remove the topper, remember that a fitted sheet selected for the combined depth may feel looser when used on the mattress alone.
Why Does My Double Fitted Sheet Keep Coming Off?
A double fitted sheet can pull away from the corners when either the mattress size or pocket depth is incorrect.
Common causes include:
- Using a standard-depth sheet on a thick double mattress
- Not including the mattress topper when measuring
- Using a UK double sheet on a European double mattress
- Choosing a pocket equal to the mattress depth with no tuck-under
- The elasticated edge sitting against the mattress side
A correctly sized deep double fitted sheet should cover the complete mattress side and leave enough material underneath for the elasticated hem to grip securely.
Choose Your Double Deep Fitted Sheet Fabric
Choose your preferred fabric below, then select the required pocket depth on the product page.
Easy-Care Polycotton
Our 200 thread count easy-care polycotton combines the comfort of cotton with the practicality of polyester. It washes well, dries quickly and requires less ironing, making it a dependable everyday choice.
100% Cotton
Our 100% cotton percale provides a crisp, naturally breathable sleeping surface. It is smooth, durable and comfortable throughout the year.
400 Thread Count Cotton
Our higher thread count cotton provides a smoother finish and a more luxurious feel. It combines natural breathability with deep-pocket options for thicker double mattresses.
1000 Thread Count Egyptian Cotton
Choose premium 1000 thread count Egyptian cotton for a smooth sateen finish and a substantial luxury feel. It allows customers with deep double mattresses to enjoy premium bedding without compromising on fit.
Bamboo and Cotton
Our bamboo and cotton blend feels soft, smooth and breathable. It is particularly appealing for warmer bedrooms and sleepers who prefer a silkier sleeping surface.
Brushed Cotton
Brushed cotton flannelette provides a warmer and cosier feel during colder weather. Deep-pocket options accommodate thick double mattresses without pulling tightly around the corners.
UK Double, Small Double or European Double?
Although these mattresses are all sometimes described as double beds, their widths and lengths are different. Always use the actual mattress measurements when choosing a fitted sheet.
Made in the UK for a Better Double-Bed Fit
Victoria Linen has been making specialist bedding in the UK since 1995. Our deep double fitted sheets are handmade to order in our Lancashire factory, allowing us to offer a wider choice of depths, fabrics and mattress sizes than standard off-the-shelf bedding.
Each sheet is made for the selected mattress size and pocket depth, then finished with a strong all-round elasticated hem. This creates a smoother fit with fewer slipping corners and less bunching during the night.
Frequently Asked Questions
What size is a standard UK double fitted sheet?
A standard UK double fitted sheet is made for a mattress approximately 4ft 6in wide by 6ft 3in long, or around 137 × 191cm.
What depths are available for double fitted sheets?
Our deep double fitted sheets are available in 35cm, 40cm, 50cm and 60cm pockets, depending on the selected product. Bespoke depths may also be available.
How do I choose the right depth for a double fitted sheet?
Measure from the bottom of the mattress to its highest point, including any protector or topper. Choose a sheet pocket deeper than the complete measurement so there is enough material to tuck underneath.
Will a deep double fitted sheet fit over a mattress topper?
Yes, provided the sheet is selected using the combined depth of the mattress, protector and topper. Measure all the layers together before ordering.
Is a UK double the same as a European double?
No. A standard UK double is approximately 137 × 191cm, while a European double commonly measures 140 × 200cm. The European mattress is both wider and longer.
Is a double bed the same as a small double?
No. A standard UK double is 4ft 6in wide, while a small double is 4ft wide. The fitted sheets are not interchangeable.
Why does my double fitted sheet keep coming off?
The sheet may be too shallow, or its width and length may not match the mattress. Measure all three dimensions and include any topper when calculating the required depth.
Can you make a deep fitted sheet for a non-standard double bed?
Yes. We manufacture specialist bedding in our Lancashire factory and can accommodate many non-standard double mattress sizes. Contact us with the width, length and complete depth.
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