Vesgantti Classic Box Top King
A practical mattress (hybrid, medium-firm feel, 26cm deep), best judged against your sleeping position, body weight and the current price.
The Best King Size Mattresses in the UK (2026)
A king (5ft, 150 x 200cm) gives couples more width and length than a double, which helps if you or a partner move around at night. Super king is wider again. Here are our top king and super king picks.
What to check
- Dimensions - a UK king is 150 x 200cm; super king is 180 x 200cm.
- Room and frame size - measure the bedroom and bed frame first.
- Motion isolation - pocket sprung and foam help limit partner disturbance on a shared bed.
- Depth and sheets - deeper mattresses need deep-fitted king sheets.
Our top picks
#1
#2 
Vesgantti Hybrid Memory Foam King
A practical mattress (hybrid, medium-firm feel), best judged against your sleeping position, body weight and the current price.
#3 
Dosleeps Memory Foam Pocket Sprung King
A practical mattress (orthopaedic hybrid, medium-firm feel, 25cm deep), best judged against your sleeping position, body weight and the current price.
#4 
Inofia LUXE Collection King
A practical mattress (hybrid), best judged against your sleeping position, body weight and the current price.
#5 
TeQsli Gel Memory Foam Hybrid King
A practical mattress (orthopaedic hybrid, medium-firm feel, 25cm deep), best judged against your sleeping position, body weight and the current price.
#6 
Starlight Beds Sprung Memory Foam King
A practical mattress (hybrid, soft feel, 20cm deep), best judged against your sleeping position, body weight and the current price.
#7 
Starlight Beds Grey Chevron Hybrid King
A practical mattress (hybrid, soft feel, 19cm deep), best judged against your sleeping position, body weight and the current price.
Frequently asked questions
Is a king size mattress worth it for couples?
If you have the room, yes - the extra width means less disturbance from a partner and more space to spread out. Make sure the bed frame and bedroom can take the larger size first.
Bottom line
Our top pick is the Vesgantti Classic Box Top King (our score 9.2/10) - A practical mattress (hybrid, medium-firm feel, 26cm deep), best judged against your sleeping position, body weight and the current price..