A full size bed, also known as a double bed, typically measures 54 inches wide by 75 inches long (137 cm by 191 cm)
. This size offers more width than a twin bed but is narrower and shorter than a queen bed, making it suitable for a single sleeper who wants extra space or for two people in a smaller bedroom
. Mattress thickness for full size beds usually ranges from 8 to 14 inches, with common thicknesses around 9 to 12 inches
