
Bed size

Standard bed sizes are based on standard mattress sizes, which vary from country to country. Bed sizes also vary according to the size and degree of ornamentation of the bed frame. Dimensions and names vary considerably around the world, with most countries having their own standards and terminology. In addition, two mattresses with the same nominal size may still have slightly different dimensions, due to manufacturing tolerances, amount of padding, and support type. While beds are generally rectangular, more specialized shapes may be obtained by special order, such as circular beds. Mattress sizes may differ from bedding sizes.
Nomenclature.
Naming standards on different bed sizes and their corresponding actual measurements can vary across national standards. Examples of such nomenclature are names like "Single", "Double", "Queen" or "King" size. Sometimes the naming standards are further divided by adding adjectives such as "Narrow", "Wide", "Extra Wide", "Long", "Extra Long" and so on, which also can vary across national standards.
For example, a "King size" bed may measure (in width by length):
Because of the growth of international trade and the above potential cause of confusion, bed sizes are becoming more standardized. In most countries, using the International System of Units, bed dimensions most often appear in centimeters, and often only by width and length. In the United States, Canada and other regions influenced by the former British Empire, dimensions are often in inches.
Europe.
Europe may traditionally have had more variations in national bed size standards than any other part of the world, but in the recent years a few sizes have become more common than others. Bed sizes are defined in centimeters in all European countries, although supplementary Imperial equivalents are sometimes shown in the United Kingdom.
Today, the most common widths sold by pan European retailers are:
Other sizes are also available in some European countries (e.g., ), but the widths listed above are the most common when looking at the European market as a whole, while and (nominal) are more typical in the UK and Ireland.
Today, the length is the most common bed length sold by pan-European retailers. Lengths of are often also available by special order. The longer beds are intended for taller people, and as a rule of thumb long beds may be recommended to people or taller, while beds are recommended for people over tall.
France.
In France, single size beds are usually .
The most common sizes for double beds are:
Italy.
In Italy, beds are classified by name and use the term "piazza" as in "place" Standard sizes are:
Northern Europe.
These sizes are for Austria, Switzerland, Liechtenstein, Germany, Poland, Belgium, Netherlands, Luxembourg, Norway, Sweden, Denmark, Iceland, Finland, Estonia, Latvia, and Lithuania. There are some variations between different countries, but these are the most common sizes. Until the 1980s the most common mattress length was 190 cm.
Portugal.
In Portugal, the most common widths for beds are:
Beds are typically or long, but have become more common.
Spain.
In Spain, standardized lengths are , with being the most common. Standardized widths are . The most common bed sizes are:
UK and Ireland.
In the United Kingdom and Ireland, beds are measured according to the size of mattress they hold, not the dimensions of the bed frame itself; bed frame sizes are not standardized and may differ between manufacturers. Listed below are the typical bed sizes from the National Bed Federation, which is the trade association for the majority of British and Irish bed manufacturers and their suppliers. Most NBF manufacturers use designs dimensioned in feet and inches with the metric indicators not being exact equivalents. There can legally be a tolerance of up to ± between the quoted measurements and the size of the mattress itself.
†.
Some UK retailers may have a "queen" size which refers to one of the above standard sizes, but there is inconsistency around which size specifically, with both the small double and super king being prevalent.
As well as customary UK sizes, some common European sizes can be found in the UK from imports and IKEA. The typical length of an IKEA and other European mattresses is , whereas UK lengths vary depending on the width of the mattress, being usually either . In 2015, IKEA started offering beds and mattresses in customary UK sizes alongside their standard European sizes.
North America.
The sizes of mattresses use non-numeric labels such as a "king" or "full", but are defined in inches. Historically most beds were "twins" or "doubles" but in the mid–1940s larger mattresses were introduced by manufacturers. These were later standardized as "queen" and "king", and first made a significant impact on the market in the 1950s and 60s. Standard mattress depth ranges from the "standard" size of to "high contour" of up to . Below are the standard ISPA widths and heights in the United States and Canada.
Note: While dimensions are specified to the half-inch below, the actual dimension used by manufacturers or various websites may be half an inch larger or smaller.
Less common sizes include:
There are also a number of specialty sizes for specific use cases:
Bedding in the United States must state the type of bed it is intended for, in addition to the dimensions in both inches and centimeters.
Oceania.
Australia.
The following bed sizes are available in Australia.
New Zealand.
The following bed sizes are available in New Zealand.
Africa.
South Africa.
In South Africa, bed sizes have standard lengths of either , with the latter being called "XL" variants. XL mattresses have the same widths as their non-XL counterparts. The XL length is recommended for persons over tall.
Asia.
India.
In India, the following sizes are standard:
China.
In China, the following sizes are standard:
In practice, bed sizes are usually categorized by the width. The length is typically , but this may vary. The most common sizes are:
Other bed sizes are available, which are less common however.
Indonesia.
In Indonesia, the standard length is always . The following market-standard sizes are commonly available in Indonesia:
Japan.
Standard Japanese bedding sizes are described in the standard "JIS S 1102:2017 Beds for domestic use" by the Japanese Standards Association.
Taiwan.
There are five common bed in Taiwan, locally known as 3 footer, 3.5 footer, 5 footer, 6 footer and 7 footer. They are also known as Taiwanese small single, twin, full, queen and king respectively.
However, American beds are also popular in Taiwan. Bedroom furniture and bedding of U.S. standard sizes can be purchased in major cities there.