What Size is a Double Mattress?

Double Mattress Size

Need to know the size of a double mattress? Depending on what country you live in the answer to that question may differ.

There are no set sizes for double mattresses across the world and many different countries have their own unique dimensions.

Today we’re going to look at some common sizes for double beds across the globe.

Double Mattress Size - UK & Ireland

As outlined by the National Bed Federation, the standard double bed size for the UK and Ireland is 135 cm x 190 cm.

Be aware, that this measurement is not entirely standardised for double mattresses. The size of a double mattress may vary ever so slightly between manufacturers.

This is because, in the UK and Ireland, manufacturers are permitted a tolerance of +/- 2 cm of the measurements that are stated.

Overall though, this won’t affect the functionality of your double mattress with your bed frame. If you’re unsure about a mattress size, it’s always best to ask the manufacturer to clarify what it is.

European Double Mattress Sizes

Double bed sizes can vary between European countries. We’ll outline a few common double sizes used in a selection of countries throughout Europe.

France uses a variety of double bed sizes. Some of the most common sizes are 140 cm x 190 cm, 160 cm x 200 cm and 180 cm x 200 cm.

Italy, on the other hand, refers to double beds as square beds. They classify their bed sizes by using the term “Piazza” (one place). A single mattress is one place, whereas a double mattress is one and a half places. The standard size for a double mattress in Italy is 120 cm x 190 cm or 120 cm x 200 cm.

Meanwhile, the most common double bed size for countries in Northern Europe such as Poland, Germany, Netherlands and Sweden is 180 cm x 200 cm. There may be some slight variations between Northern European countries, however, this is the most standard measurement.

In Spain, double beds are referred to as “cama de matrimonio” (marital bed). The most common size for a double mattress (or marital mattress) in Spain is 135 cm x 190 cm.

What Size is a Double Mattress in North America?

Because America uses the imperial measurement system, double mattress sizes are defined in inches instead of centimetres.

As of 2019, the United States is one of three countries that are yet to adopt the metric system; with the other two countries being Liberia and Myanmar.

As standard, a double bed (or full bed) in the USA measures 53.5 x 74.5 inches (136 cm x 189 cm).

Double Mattress Size in Other Countries

Although Australia uses the metric system, they share similar dimensions to North America in regard to the size of a double mattress. Australia’s double beds measure 136 cm x 189 cm.

Over in Asia, the size of a double mattress also differs. China for example, categorise their beds by width. Whilst the length is often 200 cm, the width for a double mattress can vary. Some of the most common sizes include: 120 cm x 200 cm, 150 cm x 200 cm & 180 cm x 200 cm.

The length of a mattress in Indonesia is always 200 cm. A standard double bed there tends to measure 120 cm x 200 cm.

Japan has a variety of double bed sizes including - Semi-Double, Double and Wide Double. A semi-double bed measures 122 cm x 195 cm, a double bed is 140 cm x 190 cm and finally, a wide double is 152 cm x 195 cm.

Buy A UK Double Memory Foam Mattress

Our double memory foam mattresses are made to standard UK and Ireland measurements (135 cm x 190 cm). Below you’ll find our full collection including our Best Memory Foam Mattress.


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