UK Super King Mattresses
The UK super king (180 x 200cm) is as much bed as most rooms can hold: a full 6ft of width for two people to sleep completely undisturbed.
Why choose a super king?
- At 30cm wider than a king, it's the largest size UK retailers stock as standard.
- With 90cm each, a restless partner becomes much easier to ignore.
- It's the practical choice when children or pets find their way in.
- Its 180cm width matches two 90cm singles side by side, the footprint hotel-style zip-and-link beds are built on.
Allow at least 3m x 2.9m, with around 3.5m x 3.2m feeling right; super king sheets and a 260 x 220cm duvet fit.

Emma Original Mattress
Why choose a super king?
- At 30cm wider than a king, it's the largest size UK retailers stock as standard.
- With 90cm each, a restless partner becomes much easier to ignore.
- It's the practical choice when children or pets find their way in.
- Its 180cm width matches two 90cm singles side by side, the footprint hotel-style zip-and-link beds are built on.
Allow at least 3m x 2.9m, with around 3.5m x 3.2m feeling right; super king sheets and a 260 x 220cm duvet fit.
How big is a super king mattress?
180 x 200cm, or 6ft wide by 6ft 6in long.
What size room do I need for a super king?
As a minimum allow about 3m x 2.9m of floor space. A room approaching 3.5m x 3.2m or more feels right.
Is a super king the same as two singles?
In width, yes: 180cm equals two 90cm singles side by side, which is why zip-and-link beds come in this size. Standard UK singles are 10cm shorter, at 190cm.
What bedding fits a super king?
Super king fitted sheets and a super king duvet (260 x 220cm).
Will a super king fit up my stairs?
Most bed-in-a-box brands deliver a super king rolled and compressed, which usually solves the access problem. Traditional mattresses in this size are heavy and rigid, so measure stairwells and door turns before ordering.