Mattresses

BED & MATTRESS SIZE GUIDE

  •  If you’re considering a new bed or mattress purchase, you might be confused about the variety of bed sizes available.
  •  Are there standard dimensions?
  •  Do you need to buy the bed frame and mattress simultaneously?
  •  How do the dimensions of a king size bed stack up against a standard double bed?
  •  These queries can undoubtedly add to your stress, which is why we’ve created this convenient guide to aid you.
  •  In the UK, bed sizes are typically determined by the mattress size they can accommodate, which follows a standard measurement.
  • However, the specific dimensions of bed frames can vary based on their design and style, which often leads to confusion.
  •  A common mistake is to use the mattress dimensions when calculating the required space, but it’s important to always look at the specific bed frame dimensions for exact measurements.
  •  Bed frames will vary in size and will almost always be slightly larger than the mattress they’re designed to hold.
  •  Most modern beds/mattresses sold in the UK are constructed using imperial measurements but are generally marketed in their approximate metric equivalents.
Bed/Mattress SizeDimensionsDimensions
Single3’0” x 6’3”90 x 190 cm
Small Double4’0” x 6’3”120 x 190 cm
Double4’6” x 6’3”135 x 190 cm
King Size5’0” x 6’6”150 x 200 cm
Super King6’0” x 6’6”180 x 200 cm

Standard Bed & Mattress Measurements in the UK

 
  • Single (3’0”)
    Ideal for both children and adults, a ‘single’ (3’0”) bed is well-suited for compact rooms and offers ample space for one sleeper. This size is often found in children’s rooms, including those with bunk beds.
 
  • Small Double (4’0”)
    A ‘small double’ (4’0”) bed is broader than a single bed but not quite as wide as a double. It offers abundant space for one person or adequate room for two (although it might be a bit ‘snug’ for two adults). Ideal for smaller bedrooms and guest rooms where a standard double might not fit.
 
  • Standard Double (4’6”)
    A ‘double’ bed (4’6”) is built to comfortably accommodate two adults. This is the most frequently available size for all bed types in the UK.
 
  • King Size (5’0”)
    A standard ‘King Size’ (5’0”) bed is longer than a standard ‘double’, offering 6’6” in length instead of 6’3”. A king size bed offers plenty of room for two adult sleepers and should ideally be placed in more spacious bedrooms.
 
  • Super King Size (6’0”)
    The largest of them all, the ‘super king’ (6’0”) bed offers generous space for two adults, making it perfect for couples who enjoy having their personal space when sleeping!
Scroll to Top