Foam mattress is just a sort of mattress that is created from memory. Besides memory, it is also created from other forms of substances. The compounds that are added to the mattress foams provides it the ability to increase in density. Memory foam mattress can be called visco elastic memory foam. The bed originated to be able to meet up with the demand of the mattress consumers. The real history of the Foam Mattress might be traced back again to NASA's Ames Research Center. NASA's Ames Research Center funded a project to style a bed foam that will help to relieve back pain of the astronauts caused by gforces within the 1970s. NASA believed the foam material must be used to comply with the body's shape. Anyone could eventually transfer of the positioning, though creating a shape for the body will help fix the situation. Around the body, improper pressure points is going to be established consequently. Later, the research team from NASA's Ames Research Center located ways to create a foam that may evolve the your body's shape. It is a visco elastc foam that may consistently distribute your body's weight to the foam area. mattress-inquirer rating and evaluation In 1991, Tempur Pedic, a company situated in Sweden offered the research mattresss foam to the people. After that, Tempur Pedic sold the memory mattress foam to the people that are now living in Canada and Usa. The mattress of Tempurpedic became highly popular. Tempur Pedic's success had caused the producers provide them for the local customers and to create their particular designs of memory foam mattresses. Synthetic polyurethane foam product can be used while the foam memory. The mattress manufacurers can include several kinds of chemicals to change the thickness of the foam. The foam will have higher thickness, following the substance is included. Besides, a visco elastic foam material will be added by the maker. The viscoelastic foam is non toxic. How much chemicals are utilized within the foam's manufacturing process detemins the foam fat. Most memory foam mattress features a fat of 4 - 5lb. Brighter foam bed weight between 2 - 3 pound.