With new houses getting smaller and space being at a premium one young designer has come up with the perfect solution. Designer Karen created a bookcase that transforms into a bed. A mattress stands upright in four bits and forms the bulk of the bookcase. These surround five storage shelves which are suspended in mid-air by a wall mounted frame. The mattress sections are placed on the floor and slot together to form the bed – with two parts for a single, or all four to make a double.