UK Bed Sizes (2026 Edition)

Choosing the right bed size is essential for comfort, bedroom layout, and long-term sleep quality. UK bed sizes differ from US and European standards, so understanding exact measurements helps you avoid costly mistakes when buying a bed frame, mattress, or bedding.

Below is a clear and practical guide to all standard UK bed sizes.

🇬🇧 UK Bed Size Chart (Standard Dimensions)

🛏 Small Single (75 x 190 cm)

Best for: Children, compact rooms, guest rooms, or bunk beds.

The small single is the narrowest standard UK bed. It’s ideal when space is limited but still provides full adult length (190 cm). Often used in:

• Box rooms

• Children's bedrooms

• Guest spaces

• Bunk bed setups

🛏 Single (90 x 190 cm)

Best for: One adult or growing teenager.

The single bed is one of the most common sizes in UK homes. It offers more width than a small single while keeping the same length.

Perfect for:

• Children's rooms

• Student accommodation

• Spare bedrooms

🛏 Small Double (120 x 190 cm)

Best for: Solo sleepers who want extra space or tight couples.

Also known as a “three-quarter bed”, the small double gives extra width without taking up as much space as a full double.

It’s ideal for:

• Smaller master bedrooms

• Studio flats

• Teenagers wanting more room

🛏 Double (135 x 190 cm)

Best for: Couples in standard UK bedrooms.

The UK double is the most popular bed size for couples. However, at 135 cm wide, it provides only 67.5 cm per person — less space than many couples expect.

Ideal for:

• Standard UK master bedrooms

• Guest rooms

• Couples comfortable sharing space

🛏 King Size (150 x 200 cm)

Best for: Couples who want more comfort.

The UK king size is both wider and longer than a double. At 200 cm long, it’s excellent for taller sleepers.

Benefits:

• More personal space per person

• Better for restless sleepers

• Ideal for master bedrooms

🛏 Super King (180 x 200 cm)

Best for: Maximum comfort and luxury.

The super king offers generous width and length, making it perfect for:

• Larger master bedrooms

• Families with young children who co-sleep

• Couples who want hotel-style comfort

Important Differences: UK vs Other Countries

UK sizes are not the same as US or European sizes.

For example:

• A UK King (150 x 200 cm) ≠ US King (193 x 203 cm)

• A UK Double (135 x 190 cm) ≠ US Full (137 x 191 cm)

Always check measurements when buying bedding internationally.

Which UK Bed Size Should You Choose?

Choose Small Single or Single if:

• Bedroom is under 7m²

• Buying for a child

• Furnishing student accommodation

Choose Small Double if:

• You sleep alone but like extra room

• Your bedroom is under 10m²

Choose Double if:

• Bedroom is 10–12m²

• You’re a couple on a budget

Choose King or Super King if:

• Bedroom is 12m²+

• One or both partners are tall

• You value extra sleeping space

Pro Tip: Measure Your Room First

Before buying:

• Ensure there is a minimum of 60 cm of space surrounding the bed for comfortable movement.
  

• Account for wardrobes and door swing

• Consider storage options (ottoman or divan bases)

Final Thoughts

The right UK bed size balances:
✔ Comfort
✔ Bedroom space
✔ Budget
✔ Future needs

For most couples, upgrading from a double to a king size dramatically improves sleep quality. For solo sleepers, a small double often offers the best balance of space and practicality.