There are dozens of different mattress sizes available, including standard sizes and custom sizes. Not only that, but each country will also have different standard sizes. In the UK, for example, the standard sizes are different to those available in mainland Europe. This means that the dimensions of a Double Bed, for example, will be different in the UK than it would be in Germany. That said, many standard European sizes are also available in the UK, and which sizes are available will depend entirely on the manufacturer.
But you’ll also find mattresses with lengths of 210 cm or 220 cm, generally referred to as oversized mattresses. You’ll also occasionally find unusual dimensions or custom sizes.
Not every manufacturer will offer custom sizes or oversized mattresses. If you or your partner are very tall (over 2 metres), then an oversized or extra-length mattress is highly recommended. You wouldn’t want your feet sticking out in winter!
Below you'll find the guide on the most common UK mattress sizes and who they are most suitable for.
Mattresses sized 90 x 190 cm (3’ x 6’3” - UK Single)
The 90 x 190 cm and 90 x 200 cm mattresses are some of the most common sizes. These are well-suited for singles but two mattresses can also easily be combined to form a double bed. To connect the two mattresses and make sleeping more comfortable, it’s simple to add a bed bridge. The best thing about this mattress size is that you can store it easily - it simply doesn’t take up much space! Both UK and EU sizes are commonly available in the UK, though some manufacturers will only offer the UK sizes.
VIEW THE BEST 90 X 190 CM MATTRESSES
Mattresses sized 135 x 190 cm (4’6” x 6’3” - UK Double)
The 135 x 190 cm and 140 x 200 cm mattresses are some of the most popular mattresses available. The Sleep Hero Team has tested countless of these mattresses, giving you accurate reviews based on real experience. We would recommend this mattress size for singles wanting a bit more space as well as couples with limited space. Singles with pets will also find this mattress quite comfortable. Both UK and EU sizes are commonly available in the UK, though some manufacturers will only offer the UK sizes.
VIEW THE BEST 135 x 190 CM MATTRESSES
Mattresses sized 150 x 200 cm (5’ x 6’6” - UK King)
A king-size mattress is good for couples. If placed on a double bed, this one mattress can provide sufficient space for two people. Singles who like a lot of space will also enjoy this size.
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Mattresses sized 180 x 200 cm (6’ x 6’6” - Super King)
A 180 x 200 cm mattress is the ideal size for couples. It can be placed on double beds or box spring beds. On a mattress of this size, you can choose to cuddle with your partner but also take up your own space without restricting your partner or worrying that you will disturb your partner’s sleep.
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Mattresses sized 200 x 200 cm (6’6” x 6’6” - Emporer)
The Sleep Hero team has reviewed numerous mattresses of this size and can suggest the very best ones. This mattress size is suitable for couples, offers a lot of space, and can also be used by three people (mother, father, and child).
VIEW THE BEST 200 X 200 CM MATTRESSES
The 90 x 190 cm or 90 x 200 cm are popular child mattress sizes. There are also smaller sizes available that are suitable for babies or toddlers. We’ve taken a closer look at the best mattresses for children and have summarised what you should look out for when buying.
VIEW THE BEST CHILD MATTRESSES