Buy Air Mattress KING size – Best Choice RAISED Inflatable Bed with Fitted Sheet and Bed Skirt – Built-in High Capacity Airbed Pump: Air Mattresses – Amazon.com FREE DELIVERY possible on eligible purchases Size Dimensions Notes Small Single 75 cm × 190 cm (30 in × 75 in) Common UK size for hospitality (zip & link) twin beds as beds can be combined to make a short king bed. Equivalent to previous 2’6″ x 6’3″ Buying a too-small mattress is one of the biggest mistakes new bed-buyers make. Couples who’ve been sleeping on a “double” (also known as a full-size mattress) since they got together may think they have enough room – until they learn that each person has only as much sleeping space as a baby’s crib! A bed is a piece of furniture which is used as a place to sleep or relax.. Most modern beds consist of a soft, cushioned mattress on a bed frame, the mattress resting either on a solid base, often wood slats, or a sprung base.Many beds include a box spring inner-sprung base, which is a large mattress-sized box containing wood and springs that provide additional support and suspension for the .