---
title: "Small Double"
description: "UK Small Double bed size: 120 × 190 cm (4ft). How it compares with a Single and a Double, and what bedding fits."
url: "https://bedguide.co.uk/glossary/small-double/"
category: "glossary"
primary_entity: "small double"
date_published: 2026-10-21
date_modified: 2026-10-21
---

# Small Double

> A UK Small Double is 120 × 190 cm, also called a 4ft bed. It is 30 cm wider than a Single and 15 cm narrower than a Double. It suits one adult who wants more room than a Single, or a room too narrow for a Double. Sheets and frames must say Small Double or 120 cm.

**Definition.** A UK Small Double mattress is 120 × 190 cm, also called a 4ft bed. It is 15 cm narrower than a Double.

Also called: 4ft bed, small double bed, three-quarter bed.

Some older shops call it a three-quarter bed. Always check the centimetres.

Two adults sharing a Small Double get 60 cm each.

Full guide: [Small Double bed size UK](/sizing/small-double-bed-size). Also: [UK
bed sizes chart](/sizing/uk-standard-bed-sizes).

---

Source: https://bedguide.co.uk/glossary/small-double/ · BedGuide — independent UK bed guide; paid links are labelled (see /how-we-make-money/). Facts checked against official sources where possible; see https://bedguide.co.uk/editorial-policy. Report an error: https://bedguide.co.uk/corrections.