UK bed sizes explained
Bed sizes are named by mattress size, and UK and European sizes differ. Use this chart before you choose a bed, mattress or bedding.
UK bed and mattress sizes
| Size | Mattress (cm) | Imperial | Good for |
|---|---|---|---|
| Small single | 75 x 190 | 2ft 6in x 6ft 3in | Small children's rooms, box rooms |
| Single | 90 x 190 | 3ft x 6ft 3in | Children, teens, guest rooms |
| Small double | 120 x 190 | 4ft x 6ft 3in | Teens, single adults, smaller rooms |
| Double | 135 x 190 | 4ft 6in x 6ft 3in | Couples, single adults |
| King | 150 x 200 | 5ft x 6ft 6in | Couples who want more space |
| Super king | 180 x 200 | 6ft x 6ft 6in | Couples, families with little visitors |
European (EU) sizes
Many continental beds use European mattress sizes, which are usually 200cm long. Common sizes are EU single (90 x 200cm), EU double (140 x 200cm) and EU king (160 x 200cm). A UK mattress won't fit an EU frame properly (and vice versa), so always check which size a bed takes on its product page.
How to choose a bed size
- Measure the room, then the bed's external dimensions: frames, headboards and footboards add to the mattress size.
- Leave walking space around the bed and room for bedside tables, wardrobe doors and drawers to open.
- Think about who sleeps there. Taller sleepers may prefer a 200cm-long king or super king.
- Match your bedding to the mattress size, and check mattress depth for fitted sheets.
Kids' beds and mattress depth
Bunk beds, high sleepers and mid sleepers state a maximum mattress depth. This keeps the safety rail high enough above the mattress, so stick to it. See our bunk bed safety checklist.
Frequently asked questions
What size is a UK double bed?
A UK double mattress is 135 x 190cm (4ft 6in x 6ft 3in).
Is a king size bigger than a double?
Yes. A UK king is 150 x 200cm, 15cm wider and 10cm longer than a double.
Will a UK mattress fit an EU bed?
Usually not. EU sizes are generally 200cm long and have different widths (for example an EU double is 140 x 200cm), so check the size a bed takes before buying a mattress.