Buying a new mattresses can be unnecessarily confusing. Every retailer seems to have their own standard mattress sizes and when you throw in that different countries call the same mattress by different names, it’s enough for anyone to lose sleep over.
That’s where we come in.
We’ve put together a guide to help you find the right mattress for you and we’ve started by explaining the different mattress sizes available in the UK.
Below you will find the seven standard mattress sizes available in the UK: single, small double, double, king, super king, cot and cot bed and their standard size measurements.
UK Mattress Sizes
What size mattress do I need?
The size of mattress you need will depend on your circumstances. How many people will be sleeping in the bed? How tall are those people? How much space do you have in your bedroom? Below you’ll find the different mattress sizes and who each one is best suited to.
Single
Suitable for children and teens who don’t need much space
A great space saver, single beds can also be suitable guest beds
Small Double
Suitable for bigger teens who need more space to stretch
Suitable for one adult sleeping alone
Suitable for young couples with limited bedroom space
Double
This is a classic size for average sized couples with average sized bedrooms
As a popular size choice there are also a lot of bed frame options to fit double mattresses
King
Perfect for couples with a little extra space in the bedroom
Suitable for especially tall or large people or couples who like lots of space to move in their sleep
Super King
Ideal for those with very large bedrooms
Perfect for people who require a lot of space to move around in their sleep
Great for large families as there’s room for everyone on a Sunday morning
Cot and Cot Bed Mattresses
Perfect for babies anywhere from 0-3 years old
Cot bed sized mattresses are specific to cot bed frames that have the ability to change into single beds as the child gets older
Tips for testing the size of your mattress:
Width: Lie on your back with your hands behind your head and your elbows sticking out sideways. Your elbows should not touch the edge of the bed or your partner.
Length: The mattress should be 10cm longer than the tallest person who will sleep on it
Where should I buy my new mattresses?
How do UK mattress sizes compare to Europe and the USA?
Content
UK dimensions
European Dimensions
US Dimensions
Single Mattress
90cm x 190cm
90cm x 200cm
97cm x 191cm
Small Double Mattress
120cm x 190cm
120cm x 200cm
122cm x 191cm
Double Mattress
135cm x 190cm
140cm x 200cm
137cm x 191cm
King Mattress
150cm x 200cm
160cm x 200cm
193cm x 203cm
Super King Mattress
180cm x 200cm
180cm x 200cm
203cm x 249cm
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Georgia-Rose is a publisher at Finder.com and specialises in all things shopping and travel. She has years of experience working in retail and tourism and as an avid budget traveller, she loves helping people find the best deals on everything from plane tickets to sunglasses.
When she's not jetting off somewhere new you'll find her watching cake videos or befriending stray cats.
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