UK Mattress Sizes Explained
When buying a new bed or mattress, it’s easy to feel overwhelmed by the different sizes. Questions like, “Is there a standard size?” or “Do I need to buy the bed frame and mattress together?” are common.
In the UK, bed sizes are based on the mattress dimensions, which are standard. However, bed frame sizes can vary depending on their design, often being slightly larger than the mattress. This discrepancy can cause confusion, so always check the specific dimensions of the bed frame.
To simplify your shopping experience, we’ve created this quick-reference guide to help you understand bed sizes and avoid common mistakes.
What is a single size bed and mattress?
A single bed and mattress, is ideal for both children and adults. It measures 90cm wide and 190cm long, or 3 feet wide by 6 feet 3 inches long. Single beds offer more width than ‘small singles,’ providing ample space for one person to sleep comfortably.
This size is the most popular for children’s beds, including high-sleepers, bunk beds or daybeds. Single beds are a practical choice for growing children, accommodating them from toddler age through their teenage years.
EU Single Size (90cm x 200cm) – many companies also manufacture an EU Single size, which is 10cm longer.
Did you know that you can also find a shorty bed? They are ideal for small and narrow rooms, since they measure 75cm wide by 175cm long.
What is a small double size bed and mattress?
A small double bed and mattress measure 120cm wide and 190cm long or 4 feet wide by 6 feet 3 inches long. Known as a ‘small double’ (4’0”), ‘Queen,’ or ‘Three Quarter’ bed, it offers more width than a single bed but is narrower than a standard double.
This size provides ample space for one person and can accommodate two, though it might be a bit snug for two adults. Small double beds are ideal for smaller bedrooms and guest rooms where a standard double won’t fit.
If you want to maximise the space in your room, consider small doubles with storage options like ottoman or divan bases.
Shopping Tip: If you’re looking for a beautiful and affordable bed frame, check out the Sutton Ottoman Bed shown below. It has ottoman storage (29cm deep) and comes in 5 sizes. It’s priced at £499 for a double size.
What is a double size bed and mattress?
In metric measurements, a standard double bed and mattress are 135cm wide and 190cm long or 4 feet 6 inches wide and 6 feet 3 inches long.
A standard double bed is designed to comfortably accommodate two adults, making it the most popular and widely available bed size in the UK.
This versatile size fits well in most bedrooms, providing ample sleeping space without overwhelming the room. Ideal for couples or individuals who enjoy extra room, the double bed remains a staple choice for many households.
EU Double Size (140cm x 200cm) – many companies also manufacture an EU Double size, which is 10cm longer and 5cm wider.
What is a king size bed and mattress?
A King size bed and mattress gives couples a lot more room, for a good night sleep without disturbing each other. It measures 150cm wide and 200cm long, or 5 feet wide and 6 feet 6 inches long.
A standard ‘King Size’ bed is longer than a standard double bed, offering an extra 10cm in length (200cm compared to 190cm). This size provides ample space for two adults, ensuring comfort and room to move.
However, a king size bed is best suited for larger bedrooms where there is sufficient space to accommodate its larger dimensions.
EU King Size (160cm x 200cm) – some companies also manufacture an EU King size, which is 10cm wider.
What is a king size bed and mattress?
A super king size bed and mattress is the largest size most companies manufacture and sell. It measures 180cm wide and 200cm long, which equals 6 feet wide and 6 feet 6 inches long in imperial units.
As the largest standard bed size in the UK, the super king (6’0”) offers an exceptional amount of space for two adults, making it ideal for couples who value extra room.
It’s perfect for those cosy Sunday mornings when the whole family, pets included, piles into bed. With its generous dimensions, a super king bed ensures maximum comfort and ample space for everyone.
Emperor Beds and Mattresses
An Emperor size bed measures 200cm long by 200cm wide and only a few companies manufacture this size. It’s suitable for couples who share their bed with children or pets, and have lots of space in their bedroom.
Check out our guide on the best emperor size mattresses, starting from just £600.
Which ever size you choose, make sure you measure the dimensions of your room so you’re sure it will fit properly.