White room with oriental king-size bed (standard king-size).
There are about a dozen different bed sizes, which are measured by the dimensions of the mattress the bed can accommodate. The smallest are usually cribs or toddler beds and twin beds, and these two sizes can come in small, long, and extra-long sizes. Double and queen beds are two of the most commonly used by single adults and couples alike, and king beds are the largest available in most areas, with no need to request a custom bed and mattress.
A double bed.
Cribs and baby beds are two of the smallest bed sizes on the market. In most cases, the two have the same dimensions as far as mattress size is concerned, although the crib has a handrail, unlike the baby bed. Typically, they have a mattress that is 28 inches wide by 52 inches long (about 71 centimeters by 132 centimeters); however, there are some less common sizes of cribs and toddler beds that are a little wider but a little shorter. They are often marketed as space-saving cribs or compact beds for children.
Single beds are most popular for children, teenagers and young adults.
Single beds can usually contain a mattress between 35 and 39 inches wide (about 88 centimeters by 99 centimeters) and 75 to 80 inches long (190 centimeters by 203 centimeters). The size of standard single beds varies by country, and these beds are also available in small, long and extra-long versions in many markets. They are generally more popular with children, teenagers, and young adults; in most cases, it is extremely difficult for more than one person to sleep in a single bed.
Queen beds are the most common bed size.
A double bed, often called a double bed, and a queen-size bed are two of the best-selling beds in many countries. A double bed is usually about 55 inches wide (139 centimeters) and between 74 and 79 inches long (187 centimeters by 200 centimeters). In the UK, a smaller version is available, which is typically 48 inches by 78 inches (121 centimeters by 198 centimeters). Queen size beds, which are known as wide double beds in Japan, are usually between 60 and 63 inches wide (152 centimeters and 160 centimeters) by 78 and 80 inches long (198 centimeters and 203 centimeters).
A California king size mattress is longer and narrower than a standard king size mattress.
The largest mass-produced bed sizes on the market are the king, known as super king in the UK, and the California-King beds. The former is usually between 71 and 76 inches wide (180 centimeters and 193 centimeters) by up to 80 inches (203 centimeters) long, depending on the manufacturer. A California King is generally the same width as the standard, although it is usually longer, between 81 and 84 inches (205 centimeters and 213 centimeters), which makes it ideal for someone who is naturally tall.
Children’s beds are some of the smallest bed sizes on the market.
In addition to the length and width options, the depth of beds also varies, usually between single, double and king-size beds. While there are no standard mattress depths, many range from 9 to 14 inches (approximately 23 to 36 cm) in depth. Those marketed as “deep” or “extra deep” beds generally fit beds with a depth of up to 24 inches (approx. 61 cm). Pillowtop mattresses also provide an additional layer for the top of the bed and can be even thicker than extra-deep mattresses. Consumers are advised to check mattress size and depth before purchasing any type of bed.