What is the Biggest UK Bed Size?

What is the Biggest UK Bed Size?

Most people with large bedrooms are happy to buy a UK super king size bed. However, there are some looking to buy an even bigger size bed. In this guide, we’ll explain what bed is bigger than Super King? What are the exact dimensions and what is an average price of such bed?

How big is a UK Super King bed?

UK Super King size beds are 180cm wide by 200cm long (or 6’ wide by 6’6” long). This is more than sufficient for two adults to sleep there comfortably. You’ll be able to find a wide range of super king size mattresses (ex: memory foam, pocket spring, hybrid, etc.).

Plus, you’ll be able to find a different kinds of super king size beds, such as upholstered, wooden, metal, some might have ottoman storage, others drawers for example.

What bed is bigger than UK Super King?

After a UK super king size bed, the next size is an Emperor, which is 35cm wider and 15cm longer. In some rare cases, you’ll be able to find a Caesar bed, which is 245cm wide x 200cm long.

What is the Biggest UK Bed Size?

The largest UK bed size is an Emperor, which is custom-made, and it measures 215cm x 215cm (7’ x 7’). However, you’ll be able to find Emperor beds in 200cm x 200cm (6’6” x 6’6”) or 215cm wide x 200cm long (7’ wide x 6’6” long). The exact size will depend on the manufacturer.

A handful of companies also manufacture a Caesar bed size, which is 245cm wide x 200cm long (or 8’ wide x 6’6” long).

How much does an Emperor mattress cost?

The price of Emperor mattresses ranges between £600-£1,500. This will depend on the type of materials it’s made of. Most importantly, what layers there are inside, for example: memory foam, wool, pocket springs, cotton, polyester, and how thick these layers are. Other factors affecting the price can be: where is it made, how long is the guarantee/warranty, etc.

Emperor size mattress 215cm x 215cm

Shopping tip: Check out the Otty Emperor mattress priced at £689.99 when on sale (reg. £1,149.99). It measures 200cm x 200cm and it’s 25cm thick. It has heat regulating memory foam, plus up to 2,000 pocket springs inside. The best part is that comes with 100 night trial for you to see if you like it or not.

For an updated list of best UK Emperor sized mattresses, click here.


Finding the right mattress and bed size for your bedroom is important. Make sure you measure the space you have in your bedroom, to see what will fit properly inside. You don’t want a bed that’s too big and takes too much space, making your bedroom feel cramped. You should have enough space on the sides for a bedside table, also there should be enough space for a chest of drawers, dressing table, and wardrobe. 

Also, keep in mind that the bigger the bed and mattress, generally the more expensive it is. So, this will increase the cost of your bedroom furniture.

Lastly, keep in mind that most custom made large beds can’t be returned. So, if you later discover that your large mattress is not comfortable, you won’t be able to return it. The best you can do is buy a mattress topper to make it more comfortable. 

On the other hand, there are many mattress companies that sell super king size beds with free trial. Allowing you to sleep and test the mattress at home for up to 200 or 365 days, and if you’re not satisfied you can return it and get a full refund.