---
title: "Emperor Bed Dimensions"
description: "What the UK Emperor mattress size means (commonly 200 × 200 cm) and how it differs from Super King — plain guide."
url: "https://bedguide.co.uk/sizing/emperor-bed-dimensions/"
category: "sizing"
primary_entity: "Emperor bed size"
date_published: 2026-08-03
date_modified: 2026-08-03
---

# Emperor Bed Dimensions

> An Emperor bed in UK shops usually means a square mattress of 200 cm by 200 cm. Emperor size sits above the UK Super King of 180 × 200 cm. It is a marketing size, not a regulated British Standard. Sheet availability, frame strength and doorway clearance need checking because Emperor mattresses exceed common Super King logistics.

## Dimensions

| Size name | Width (cm) | Length (cm) | Width (in) | Length (in) |
| --- | --- | --- | --- | --- |
| Emperor (common UK retail) (Non-standard marketing size) | 200 | 200 | 78.7 | 78.7 |
| UK Super King (reference) | 180 | 200 | 70.9 | 78.7 |

## Defined term

**Emperor bed size** — a non-standard UK retail mattress footprint most often 200 cm × 200 cm. That is wider than the UK Super King size of 180 cm × 200 cm.

## Why it exists

Couples wanting near-Single width each sometimes jump past Super King. Emperor answers that with a square footprint — at the cost of rarer sheets and harder stair access.

## Practical things to check

- **Sheets** — fewer standard options than Super King. Measure pocket depth too — [fitted sheets](/sizing/uk-fitted-sheet-sizes).
- **Frames** — centre rails and leg ratings must handle the wider span.
- **Access** — see [bed footprint and access](/sizing/bed-footprint-and-access). Do not fold pocket-sprung Emperors to clear stairs.
- **Naming** — some makers use "Emperor" for slightly different centimetres. Always confirm the label.
- **Alternative** — [zip-and-link](/glossary/zip-and-link) two Singles can create Super King width with easier delivery.

## Related BedGuide entries

- [UK standard sizes](/sizing/uk-standard-bed-sizes)
- [UK King vs Super King](/compare/uk-king-vs-uk-super-king)

## Frequently asked questions

### What size is an Emperor mattress in the UK?

Most UK shops mean about 200 cm by 200 cm. Always confirm centimetres on the label — Emperor is not a fixed British Standard size.

### Is Emperor bigger than Super King?

Yes in the common retail pattern. UK Super King is usually 180 × 200 cm. Emperor is commonly 200 × 200 cm — twenty centimetres wider.

### Will Super King sheets fit an Emperor bed?

Usually not well. The plan is wider. Buy sheets cut for the measured centimetres and check pocket depth.

---

Source: https://bedguide.co.uk/sizing/emperor-bed-dimensions/ · BedGuide — educational encyclopedia, no affiliate commission. Facts checked against official sources where possible; see https://bedguide.co.uk/editorial-policy. Report an error: https://bedguide.co.uk/corrections.