In the hospitality industry, a "double bed" (often called a Full bed) typically refers to a mattress size that is approximately 54 inches wide by 75 inches long (137×191 cm). It is designed to accommodate two people, though it provides only 27 inches of personal space per person, which is the same width as a crib mattress. When a hotel room is listed as a "Double Room," it may contain one double bed or two twin beds; however, if the listing specifies "one double bed," it means a single bed meant for two guests. In 2026, many modern hotels are phasing out the standard double in favor of "Queen" or "King" sizes to provide better guest comfort. It is also important to note that in some European and UK hotels, a "double bed" might simply be two single beds pushed together with a single large topper. Always check the specific dimensions, as a "double" is the smallest of the "for-two" bed categories and can feel quite cramped for two tall adults.