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King Size Bed Sheets
Explore our elegant, exceptional home bed sheets in King size. We have a range for all tastes and budgets.
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46cm
46cm
30cm
38cm
38cm
38cm
15-25cm
38cm
25-38
30cm
38cm
30cm
30cm
38cm
38cm
46cm
38cm
38cm
30cm
38cm
38cm
38cm
30cm
30cm
46cm
30cm
38cm
30cm
28cm
38cm
Got King Size Bed Sheet Questions? We've Got Answers
UK king size bed bedding from Belledorm follows the standard dimensions used across the British bedding industry, with fitted sheet depth varying depending on your mattress.
| Product | Standard UK Size |
|---|---|
| Fitted sheet | 150cm x 200cm (5ft x 6ft 6in) |
| Flat sheet | 275cm x 275cm |
| Duvet cover | 225cm x 220cm |
Fitted sheets are available in three depths: standard 30cm (12 inches) for mattresses up to 22cm deep, extra deep 38cm (15 inches) for mattresses up to 30cm including those with toppers, and ultra deep 46cm (18 inches) for the deepest adjustable and pocket sprung mattresses. Always measure your total mattress depth, including any topper or protector, before selecting a fitted sheet depth. Note that UK king size dimensions differ from US king size - always verify before purchasing internationally.
A standard Belledorm king size fitted sheet (150cm x 200cm) fits a UK king size mattress measuring 150cm wide by 200cm long, the most popular larger bed size in the UK, found in master bedrooms and higher-end hotel rooms.
The fitted sheet's length and width dimensions are fixed to the mattress size. What varies is the depth, the box measurement that wraps under the mattress edge. Belledorm offers king size fitted sheets in 30cm (standard), 38cm (extra deep), and 46cm (ultra deep) depths to accommodate mattresses from standard models through to deep pocket sprung mattresses with toppers. Note that UK king size (150cm x 200cm) is a different dimension to US king size (193cm x 203cm) - a UK king size sheet will not fit a US king size mattress. If your mattress measures 180cm wide, you need the super king range, not king size.
A UK king size bed measures 150cm x 200cm (5ft x 6ft 6in). A super king measures 180cm x 200cm (6ft x 6ft 6in) - 30cm wider at the same length. The two sizes use different fitted sheets, flat sheets, and duvet covers, none of which are interchangeable.
The additional 30cm width of a super king provides each person sharing the bed with an extra 15cm of sleeping space - a meaningful difference in comfort for couples. Both sizes share the same 200cm length, making them equally suitable for taller adults. A king size fitted sheet will not stretch to fit a super king mattress and will pull free from the corners. If you are unsure which size your mattress is, measure the width: 150cm is king size, 180cm is super king.
For most couples, a king size bed (150cm x 200cm) is a significant comfort improvement over a double (135cm x 190cm), providing 15cm more width and 10cm more length.
The additional width gives each person sharing the bed approximately 7.5cm more sleeping space, which makes a noticeable difference to comfort - particularly for couples who move during the night or prefer not to sleep in close contact. The 10cm extra length is also beneficial for adults over 6ft who find a 190cm double mattress restrictive. The practical trade-off is floor space: a king size bed requires approximately 20cm more room width than a double, which matters in smaller bedrooms. Belledorm's king size range covers 118 products from Basics Polycotton from £12.50 through to 1200TC Cotton Sateen, the same full fabric range as the double size.
To fully dress a king size bed, you need a fitted sheet, a duvet cover, and at least two pillowcases. A flat sheet is optional but recommended for a layered or hotel-style finish.
The complete king size bed bedding list:
- Fitted sheet (150cm x 200cm) - in your chosen depth: 30cm, 38cm, or 46cm
- Duvet cover (225cm x 220cm) - sized for a king size duvet
- Pillowcases - standard UK pillow is 48cm x 74cm; two for a king size bed
- Flat sheet (275cm x 275cm) - optional, used between the fitted sheet and duvet
- Mattress protector (150cm x 200cm) - recommended to extend mattress life and add a hygiene layer
- Valance sheet - optional, used to conceal the bed base and divan legs for a neater finish
All items are available in matching fabrics and colours across Belledorm's king size range, making it straightforward to build a fully coordinated set.
Yes, UK king size bed sheet dimensions are standardised: fitted sheets are 150cm x 200cm, flat sheets are 275cm x 275cm, and duvet covers are 225cm x 220cm. Belledorm's king size range follows these standard UK dimensions throughout.
The critical caveat is that UK king size is not the same as US king size. US king size mattresses measure 193cm x 203cm, significantly larger than the UK standard. Always confirm you are purchasing UK-sized bedding. The fitted sheet depth is also not standardised and varies by product and brand - always check the box depth (30cm, 38cm, or 46cm) against your mattress measurement. If your mattress measures 180cm wide rather than 150cm, you need super king bedding, not king size.
Yes, UK double bed sheet dimensions are standardised: fitted sheets are 135cm x 190cm, flat sheets are 230cm x 275cm, and duvet covers are 200cm x 200cm. Belledorm's double range follows these standard UK dimensions throughout.
The one variable is fitted sheet depth, this is not standardised and varies by product and brand. Always check the box depth (30cm, 38cm, or 46cm) against your mattress measurement before purchasing. One common point of confusion is the duvet cover: a double duvet cover (200cm x 200cm) is square, not rectangular, this is correct and standard across the UK industry. If you are buying bedding as a gift or for a property you cannot measure, standard UK double dimensions apply to the overwhelming majority of double beds manufactured since 2000.