How big is a twin bed?


Quick Answer

A twin bed is the smallest adult mattress size, and it measures����approximately 38 inches wide by 75 inches long. Twin beds and full size beds are actually both the same length. For individuals who are tall but require a twin sized bed, a twin extra-long mattress size is available.

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Full Answer

The extra-long twin mattress can actually be found in most college dormitories. It is 5-inches longer than a standard twin bed, and it is the same length as a king or queen-sized mattress.

A twin bed is made to suit a child or one adult. Twin mattresses are commonly found in daybeds and bunkbeds. The only mattress smaller than a twin is a crib size.

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