A standard single bed is typically about 90 cm wide by 190 cm long (approximately 3 ft x 6 ft 3 in, or 36 in x 75 in).

Because you mentioned “standard single bed,” it’s worth noting that:

  • In the UK and much of Europe, a single is usually 90 cm x 190 cm.
  • Some countries have very close equivalents (for example, around 92 cm x 188 cm or 36 in x 74 in).

So if you’re buying a mattress or bedding, look for something labeled “Single 90 x 190 cm” or “Single 3'0 x 6'3” as the standard size.