UK Bed Sizes Guide: Find the Perfect Bed & Mattress 

Confused about bed sizes? Here’s everything you need to know.

Buying a new bed or mattress should be simple—but with so many sizes to choose from, it can get overwhelming fast.

• What’s the difference between a double and a king size?

• Will a king size bed fit in my bedroom?

• What’s the best bed size for two people?

Don’t worry, we’ve got you covered. 

This bed and mattress size guide breaks down all UK standard sizes, plus essential tips on choosing the right one based on room size, sleeping habits, and comfort preferences.

UK Standard Bed & Mattress Sizes 

UK bed sizes are measured by mattress dimensions, but keep in mind that bed frames can be slightly larger depending on style and design.

What’s the Best Bed Size for You? 

Choosing the right bed isn’t just about mattress dimensions—you also need to think about:

✔ Room size – Will it fit comfortably without feeling cramped?
✔ Who’s sleeping in it? – Solo sleeper, couple, or family?
✔ Sleeping position – Do you sprawl out or stay compact?
✔ Storage needs – Do you need extra space under the bed?

Below, you’ll see a breakdown of each bed size and who they’re suited for:

UK Small Single 

• Size: 2'6" x 6'3" (75 x 190 cm)

• Use Case: Best for kids, guest rooms, or space-saving solutions. Small but functional.

• Minimum Room Size: 2.1m x 2.1m

• Considerations to Have:

• Limited space for adults—best suited for young children or occasional guests.

• Bedding and accessories for small singles can be harder to find.

• Ideal for narrow rooms, but may feel cramped for taller sleepers.

UK Single 

• Size: 3'0" x 6'3" (90 x 190 cm)

• Use Case: A great choice for children, teenagers, or solo sleepers. The most popular size for bunk beds.

• Recommended Minimum Room Size: 2.4m x 2.7m

• Considerations to Have:

• Offers more width than a small single, making it suitable for growing kids and adults.

• May feel narrow for restless sleepers or those who move a lot during the night.

• Works well in smaller bedrooms, guest rooms, or studio apartments.

UK Small Double/Queen Size 

• Size: 4'0" x 6'3" (120 x 190 cm)

• Use Case: Perfect for one person who wants extra room or a cosy fit for two in a small bedroom.

• Recommended Minimum Room Size: 2.6m x 3m

• Considerations to Have:

• Provides more sleeping space for solo sleepers who like to spread out.

• Can accommodate two people but may feel tight, especially for taller individuals.

• Ideal for spare rooms, small apartments, or couples with limited bedroom space.

UK Double 

• Size: 4'6" x 6'3" (135 x 190 cm)

• Use Case: The UK’s most common size—ideal for two people, but not the most spacious option for couples.

• Recommended Minimum Room Size: 2.7m x 3m

• Considerations to Have:

• Great balance between space and practicality, fitting most UK bedrooms.

• Some couples may find it a bit snug, particularly if they value personal space.

• Widely available bedding and accessories make it a convenient choice.

UK King Size 

Size: 5'0" x 6'6" (150 x 200 cm)

• Use Case: A step up in length and width—great for couples or taller sleepers who need extra legroom.

• Recommended Minimum Room Size: 3m x 3.5m

• Considerations to Have:

  • Offers more comfort and space for couples, especially if one or both are taller.

  • Requires a larger room to avoid feeling cramped.

  • Heavier and bulkier, so consider access (stairs, doorways) when ordering.

  • Bedding is easy to find but typically more expensive than double sizes.

UK Super King 

• Size: 6'0" x 6'6" (180 x 200 cm)

• Use Case: The ultimate luxury bed size—spacious, comfortable, and perfect for large bedrooms.

• Recommended Minimum Room Size: 3.5m x 3.5m

• Considerations to Have:

• Offers maximum sleeping space, ideal for couples, families sharing with kids, or pets.

• Needs a large bedroom to avoid overwhelming the space.

• Access and delivery can be challenging due to its size—measure doorways and staircases beforehand.

• Bedding and bed frames are more expensive, with fewer style options compared to smaller sizes.

UK vs. EU Bed Sizes – What’s the Difference? 

If you’re shopping for a new bed or mattress, you may have noticed that European (EU) bed sizes differ from UK standard sizes. 

Buying mismatched frames and mattresses can lead to ill-fitting bedding and an uncomfortable sleep setup.

Here’s a handy table comparing UK vs EU bed sizes, followed by a breakdown of the key differences.

UK vs EU Bed Size Comparison Table 

UK Bed Size FAQs 

What Size is a Single Bed?

A single bed is 190cm long and 90cm wide. Or 6ft 3 inches long and 3ft wide. A EU single bed is 10cm longer than a UK single.

What Size is a Small Double Bed?

A small double bed, otherwise known as a queen-size bed, is 190cm long and 120cm wide. Or 6ft 3 inches long and 4ft wide.

What Size is a British Queen-Size Bed?

A queen-size bed is the same as a small double bed in the UK. It is 190cm long and 120cm wide. Or 6ft 3 inches long and 4ft wide

What Size is a Double Bed?

A UK double bed is 190cm long and 135cm wide. Or 6ft 3 inches long and 4ft 6 inches wide. A EU double bed is 5cm wider and 10cm longer.

What Size is a King Size Bed?

A UK king-size bed is 200cm long and 150cm wide. Or 6ft 6 inches long and 5ft wide. An EU king is 10cm wider at 160cm. 

Is Queen Size Bigger Than King?

No, a British queen size is smaller than a king size bed. A queen size, otherwise known as a small double bed is 120cm wide and 190cm long. A king size bed is 150cm wide and 200cm long. 

In other words, a king-size bed is 30cm wider than a queen size bed, and 10cm longer. 

What Size is a Super King Bed?

A super-king-size bed is 200cm long and 180cm wide. Or 6ft 6 inches long 6ft wide.

What is the Biggest Bed Size?

The largest standard UK bed size is a super king-size bed. It is 200cm long and 180cm wide. It’s the equivalent of two single beds in width. 

However, beds can go wider than this, but they aren’t widely available.

For example, the Alaskan king-size bed is 9ft wide and 9ft long. The Emperor bed is 7ft x 7ft.

Final Thoughts: Finding Your Perfect Bed Size  

Choosing the right bed size is about more than just dimensions—it’s about comfort, space, and lifestyle.

✅ For solo sleepers: A Single or Small Double is a great space-saving choice.
✅ For couples: A Double is standard, but a King or Super King offers more space.
✅ For tall people or those who like extra room: King and Super King beds provide added length.

Shop eze™ Mattresses

Looking for the perfect mattress from eze™ Mattress? Check out our collection of:

• Single Hybrid Mattresses

• Small Double Hybrid Mattresses 

• Double Hybrid Mattresses

• King Hybrid Mattresses

• Super King Hybrid Mattresses

Ready for the best sleep of your life? Find your perfect mattress today!