Bed & Mattress Size Guide

When it comes to beds and mattresses in the UK, they usually come in 3 popular sizes. At Sure Sleep Beds all our mattresses and divan beds are available in 6 standard sizes:

  • Single (3'0")
  • Small Single (2'6")
  • Double (4'6")
  • Small Double / Three Quarter (4'0")
  • King Size (5'0")
  • Super King Size (6'0")


Width x Length (Imperial) Width x Length (Metric)
Small Single 2'6" x 6'3" 75cm x 190cm
Single 3'0" x 6'3" 90cm x 190cm
Small Double / Three Quarter 4'0" x 6'3" 120cm x 190cm
Double 4'6" x 6'3" 135cm x 190cm
King Size 5'0" x 6'6" 150cm x 200cm
Super King Size 6'0" x 6'6" 180cm x 200cm

99% of our Mattresses and Divan Beds are available in all these sizes, we can also create Tailor Made Mattresses in any size of your choice by visiting our Bespoke Divans page or calling us on 01302 953410 to discuss your options.