UK Emperor Mattresses

The UK emperor (200 x 200cm) is a statement of intent: a two-metre square of bed for master bedrooms with space to spare.

Why choose an emperor?

  • It's 20cm wider than a super king, the largest standard size.
  • The square footprint gives 200cm in both directions, generous for even the tallest sleepers.
  • It's a size favoured by traditional and premium mattress makers.
  • It's the most comfortable option for families co-sleeping with young children.

Allow at least 3.2m x 2.9m, ideally well over 3.5m of width; emperor sheets and duvets come from specialist retailers.

All UK Emperor mattresses

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Emma Original Mattress

Hybrid, Medium Firm, 25cm, 200-night trial
Size: King size
Mattress Next Day
£599
£423
Mattress Online
£599
£453
Mattress Man
£559
+ 1 more retailer
Currently out of stock at all retailers
£216 cheaper than Emma direct
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Why choose an emperor?

  • It's 20cm wider than a super king, the largest standard size.
  • The square footprint gives 200cm in both directions, generous for even the tallest sleepers.
  • It's a size favoured by traditional and premium mattress makers.
  • It's the most comfortable option for families co-sleeping with young children.

Allow at least 3.2m x 2.9m, ideally well over 3.5m of width; emperor sheets and duvets come from specialist retailers.

How big is an emperor mattress?

200 x 200cm, roughly 6ft 6in in both directions.

What should I check before buying an emperor?

Start with the room: allow at least 3.2m of width, and well over 3.5m for it to feel right. Then check access for delivery and the base, since emperor frames are specialist items. Some emperors come as zip-and-link halves, which makes handling far easier.

What bedding fits an emperor?

Emperor-specific sheets and duvets, stocked by specialist and premium bedding retailers rather than the supermarket shelf.

Should I choose an emperor or a super king?

If the room takes it and the budget allows, the emperor's extra 20cm of width is a real luxury. The super king remains the practical ceiling for most homes.