The Definitive Advice Guide to UK Bed Sizes

Confused about Bed Sizes?

Have you ever wondered what the difference is between a king size bed, a queen, and a double? Not quite sure what mattresses correspond to which size bed? This is a guide to bed sizes in the UK so you can clear up the confusion and choose the bed that works best for you.

Choosing the right bed and mattress size is one of the most important decisions you can make when updating your bedroom. It is important to remember that bed and mattress sizes can differ between countries. It is also important to check the size of bed frames before buying them, as these will vary depending on the type of bed. But for standard dimensions, here are the most accurate UK bed and mattress sizes:

Super King Bed Size

Super King Bed Size Measurements.

What measurements is a super king size bed and mattress?

Standard super king beds and mattresses are 180 centimeters wide and 200 centimeters long. In imperial dimensions, this equals 6 feet in width and 6 feet 6 inches in length.

As the largest bed and mattress size available, especially if you have children — you can expect the children to want to climb into bed at some point. It’s the rules!

King size beds are also excellent options if your partner is a bit of a wriggler and disturbs you with their movements at night!

Recommended for: 2 persons and those who value space.

See our Super King Mattress Range

King Size Bed

King Size Bed Measurements.

What measurements is a king size bed and mattress?

A standard king-size bed and mattress are 150cm wide and 200cm long in metric dimensions. This is equal to 5 feet wide and 6 feet 6 inches long in imperial measurements.

Queen size is an American term for kingsize beds and is slightly smaller than the UK size, so if you happen to be dealing with a US retailer or are browsing on a US website, be aware of this use of the term.

It is also worth noting that on some websites, the term ‘wide double beds’ is a Japanese equivalent of a king size bed.

Kingsize beds are one of the more luxurious options and are especially suitable for couples. This popular bed option spoils each partner with plenty of space. The extra length of a kingsize bed also makes these beds an inviting option for taller people.

Of course, if you buy a king size bed, you’ll need a reasonably large bedroom.

Recommended for: 2 persons and tall people.

See our King Size Mattress Range


Double Bed Size

Double Bed Size Measurements.

What measurements is a double bed and mattress?

A standard double bed and mattress are 135cm wide and 190cm. This is equal to 4 feet 6 inches wide and 6 feet 3 inches long in imperial dimensions.

A standard double is a useful choice for couples, although it can be quite cosy. However, if you like more room, then upgrade to a kingsize bed, or larger would be recommended to have space.

Now, this is where things start to get confusing. You may see a small double bed referred to as a ‘queen bed,’ and some think this is somewhere between a standard double bed and a kingsize one.

However, in the UK, it is actually smaller than a standard double bed.

Remember in this guide measurements are the UK standard bed measurements, avoiding confusion.

Recommended for: 2 persons and a small to average-sized bedroom.

See our Double Bed Mattress Range


Small Double Bed Size

Small Double Bed Size Measurements.

What measurements is a small double bed and mattress?

In metric dimensions, a small double bed and mattress are 120cm wide and 190cm long. This is equal to 4 feet wide and 6 feet 3 inches long. They’re most suited to one person but can accommodate two adults if necessary.

Small doubles are helpful for couples. However, it may be better for single adults who want plenty of space or for teens, especially if you don’t have much space in your bedroom.

If your bedroom is smaller than average, small doubles are ideal, especially if you choose a divan or ottoman bed base, maximising storage.

Recommended for: 1 person and small bedrooms.

See our Small Double Bed Mattress Range


Single Bed Size

Single bed size Measurements.

What measurements is a single bed and mattress?

A single bed and mattress are 90 centimeters wide and 190 centimeters long. In imperial dimensions, this is equal to 3 feet wide and 6 feet 3 inches long.

They are ideal for one person. A single bed is also recommended for a slightly older child, which will last into their teenage years.

Recommended for: 1 person

See our Single Bed Mattress Range


Small Single Bed Size

Small Single Bed Size Measurements.

What measurements is a small single bed and mattress?

Small single beds and mattresses are 75cm wide and 190cm long. This is equal to 2 feet 6 inches wide and 6 feet 3 inches long in imperial dimensions.

Small singles are designed to fit narrower kid’s bed frames and guest beds. They are ideal for saving space and for spare rooms.

Recommended for: Young children, small rooms, and guest beds.

See our Small Single Bed Mattress Range

Note for consideration

Upgrading to a larger bed isn’t as expensive as you might expect. Now that you know the different terms for the beds and the mattress sizes that fit them, you could treat yourself and go for something with more grandeur.


Watch our new YouTube Video – UK Bed Sizes Explained

How about taking a look at our Sleepeezee Travelodge Mattress?

Sleepeezee mattresses are found in many hotels around the world, including Travelodge, Café Royal, Claridge’s, The Connaught, Four Seasons Hotels and Resorts, Hilton Hotels & Resorts, Mandarin Oriental Hotels, The Langham London, The Ritz London, as well as the Shangri La Hotel at the Shard London and The Berkeley London.

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