TEMPUR® Mattress Size Guide

Sleep is essential to everyone’s health and well-being, but how many of us realise that the space where we choose to sleep has not necessarily changed in size since we were babies in the cradle? The width of the average cot is approximately 75cm. A standard double bed, one of the most popular sizes in the UK, measures 135cm wide. If you share your bed that’s just 67.5cm each! The fact is, the more space you have to sleep in, the better your night’s rest will be.

Here's a basic guide to mattress/bed sizes to help you make the most of your bedroom space. We recommend you should always work in metric for the most accurate measurements, but if you prefer feet and inches, then we have listed the nearest equivalent size to help you.

1 piece mattress in standard UK sizes	Metric (cm)		Nearest imperial equivalent (feet/inches)
Images below are for guidance only	Width	Length	Width	Length
Single	90	190	3'	6'3"
Standard 3ft size, perfect for growing children, but it may be worth considering a longer bed if the sleeper is tall.
Double	135	190	4'6"	6'3"
First of the 3 most popular standard sizes suitable for couples. You have a cosy 67.5cm each. Consider a longer bed if you are tall.
King	150	200	5'	6'6"
Most popular bed for two in the UK, you have 75cm each, and the sleeping area is 10cm longer than a standard double.
Super King	180	200	6'	6'6"
The biggest and best of the standard sizes, it gives two sleepers 90cm each, and is same length as a king size.

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TEMPUR® Mattress Size Guide