Most people with large bedrooms are happy to buy a 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?
What is the biggest UK bed size?
Super King size is the largest standard bed size in the UK. It measures 180cm wide by 200cm long (or 6’ wide by 6’6” long). This is more than sufficient and very spacious 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.). Their prices range between: £500-£1,800.
If you’re shopping for a super king size bed, you can find different kinds: such as upholstered, wooden, or metal, some might even have ottoman storage or drawers.


Above you can see the Hopkins Ottoman Bed in super king size. It’s 214cm long by 185cm wide and has lift up ottoman storage. It’s priced at £999 for a super king size (or £799 when on sale).
What bed is bigger than a Super King?
After a UK super king size bed, the next size is an Emperor, which is custom-made, and measures 200cm wide x 200cm long. You can also find a Large Emperor which is 213cm wide x 213cm long (7’ x 7’).
In comparison, a super king bed is 6 feet by 6 feet 6 inches (183cm x 198cm). Consequently, an emperor bed is about 35cm wider and 15cm longer (or 1 foot wider and 6 inches longer) than a super king bed.
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-£2,000. This will depend on the type of materials it’s made of.
Shopping Tip: Check out our guide on the best Emperor size mattresses starting from £550.
The most important factor affecting the price is, what layers there are inside, for example: memory foam, pocket springs, wool, 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.

Shopping tip: Check out the Otty Emperor mattress priced at £599.99 when on sale (reg. £929.99). 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.
Conclusion:
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.
Please note, prices mentioned in this article are accurate as of 28 May, 2024.