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Asofa bed orsofa-bed (in the US often called asofabed,hide-a-bed,bed-couch,sleeper-sofa, orpullout sofa) is amultifunctional furniture typically consisting of a sofa orcouch that, underneath its seatingcushions, hides a metal frame and thinmattress that can be unfolded or opened up to make abed. Awestern-style futon differs from a sofa bed, although sofa beds using futon mattresses are common.
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Leonard C. Bailey filed a patent for the first "folding bed" on July 18, 1899. The metal bed frame could be folded, and the bent mattress could be closed for use if needed. Later, it was known as a "hide-a-bed".
Rudolf Coopersmith filed a patent for the Davenport bed in 1905. Between 1905 and 1947, Coopersmith filed over 30 patents for mechanical parts of sofa beds, mattresses, and mattress manufacturing machinery. In 1925, he took out a patent for the sofa bed, the precursor of the modern-day pullout sofa.
William Lawrence Murphy took out a patent for making "In-A-Dor bed", which is known as a "Murphy bed" today. The folded space-saver into a wall closet characterizes it.
In 1931,Bernard Castro made and sold the "Castro convertible" by using $400 from his savings. Castro's design is the evolution of most sofa beds sold nowadays.
After mimicking the Japanese founders, thefuton appeared in the United States around 1980. William Brouwer developed the first sofa convertible frame style in the United States.
A "slide away bed" can refer to a sofa bed that slides to the wall to form a sofa, with the mattress hinged to form a seating surface and back support. The bed frame support is a telescoping frame that allows the bed platform to recess below the seating cushion. The primitive version of the Slide Away Bed was invented by Manning Lane, Warren J. Hauck and Roy O. Sweeney ofCincinnati, Ohio. The knock-down sofa bed with hinged mattress patent was filed on September 5, 1978, and issued on May 27, 1980.[1][2]
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Although most sofa beds use a queen short mattress measuring 150 cm × 185 cm (60 in × 72 in), other common sizes include 145 cm × 185 cm (58 in × 72 in), 135 cm × 185 cm (54 in × 72 in), and 130 cm × 185 cm (52 in × 72 in). The average sofa bed mattress thickness is 11 cm (4.5 in). Sofa mattresses can be produced out of many different materials; the majority are made of springs or foam.[citation needed]
Spring sofa mattresses usually contain:
Pocket-coil mattresses are mattresses with coils resting inside the base of the mattress. Each coil is encased in a pocket, allowing the mattress to keep its shape over time.
A slide-away bed is a sofa bed that slides to the wall to form a sofa. Themattress is hinged to create a seating surface and back support. The bed frame support is a telescoping frame that allows the bed platform to recess below the seating cushion.
Asleeping chair,armchair bed orchair bed can differ from sleeper sofas or futons in that they are made for a one-person width, which is reflected by them sometimes being referred to assingle sofa bed chairs. Some sleeping chairs aremultifunctional furniture that can also function as achaise longue orrecliner when upright.
