A Complete Guide to UK Bedding Sizes

A Complete Guide to UK Bedding Sizes

Making sure you have the right sized bedding for your bed is essential to a good night’s sleep. If you have ever tried to stretch a fitted sheet over a mattress that is too big for it, you will also know that it’s essential to your sanity. Read on to make sure you have the right dimensions for that perfect fit on single, double, king-sized beds and more. 

How do I know my bed sheet size?

The best way to make sure your bedding and bed sheets fit your bed is to measure your mattress. Most mattresses in the UK will come in four standard sizes, as listed below. If your mattress is non-standard, then size up to the next largest bedding size. For example, if your single bed is wider than a standard UK single bed (such as a three quarter bed), then go for a double linen bedding set. For some it’s a matter of personal preference: if you are a duvet-hogger you might want a king-size bedding bundle for that extra coverage. 

Common UK bed sizes:

  • Single beds: in the UK, a standard single bed measures 90 x 190cm. Used for people to sleep in alone, these beds are great for smaller rooms where more space is needed and are commonly used for children’s rooms and bunk beds. 
  • Double beds: a standard double bed is 135 x 190cm and this is the most popular bed size in the UK. 
  • King beds: for those who want that extra bit of room or who might be a bit taller and need more length, the king size bed measures 150 x 200cm. 
  • Super king beds: for ultimate star-fishing, this bed is 180 x 200cm and is a great size for those with room to spare in the bedroom or who simply like to stretch out at night. 
  • In case you were wondering, a Queen-sized bed (most commonly described as such in the United States) is the equivalent to a UK King bed. 

How do I know what sheets will fit my existing duvet?

Most duvets will show their size on the care label, so check that first. If not, simply measure your duvet against the sizes in our table below and choose the right duvet cover for you. 

What do I need to furnish my bed?

In general, in the UK, we have moved away from the more traditional bedding of sheets, blankets and eiderdowns and most households now opt for duvets set and duvet covers. For each bed, we generally advise the following: 

  • One linen fitted sheet, to ensure it never slips off or bunches up in the night. Our fitted sheets are made with deep corners, to fit even the tallest mattresses. 
  • One linen flat sheet, great for optional lighter coverage in the warmer months. 
  • 2-4 linen pillowcases: be sure to check whether your pillows are standard, square or king-sized, based on the measurements in the table below. 
  • One linen duvet cover - at Piglet in Bed, we love to mix and match our colourways from our full range of linen bedding. 

How big are Piglet in Bed’s bed sheets?

All of our bed sheets and pillowcases are standard UK sizes. Please look to the below table for an easy referral guide of our sizes. 






Standard Pillowcases

75 x 50 cm

29.5 x 19.5 inches

Super King Pillowcases

90 x 50 cm

35.4 x 19.5 inches

Square Pillowcases

65 x 65 cm

25.6 x 25.6 inches


Single Duvet Cover

140 x 200 cm

55 x 79 inches

Single Flat Sheet

180 x 275 cm

71 x 108 inches

Single Fitted Sheet

90 x 190 x 30 cm

35.5 x 75 x 12 inches


Double Duvet Cover

200 x 200 cm

79 x 79 inches

Double Flat Sheet

230 x 275 cm

90.5 x 108 inches

Double Fitted Sheet

140 x 190 x 30 cm

55 x 75 x 12 inches

King Size

King Size Duvet Cover

225 x 220 cm

88.5 x 86.5 inches

King Size Flat Sheet

275 x 275 cm

108 x 108 inches

King Size Fitted Sheet

150 x 200 x 30 cm

59 x 79 x 12 inches

Super King

Super King Duvet Cover

260 x 220 cm

102.5 x 86.5 inches

Super King Flat Sheet

305 x 275 cm

120 x 108 inches

Super King Fitted Sheet

180 x 200 x 30 cm

71 x 79 x 12 inches

Shop Linen Bedding

We hope this guide has helped you find the perfect fit of bed linen for your home and shed some light on the often perplexing world of bed sheet sizing. To find out how to wash and care for your linen bedding, please refer to our complete linen care guide.
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