Memoryfoam mattress is a sort of mattress that is made from polyurethane. Besides polyurethane, it is also produced from other forms of chemicals. The compounds which might be added to the mattress foams presents the capacity to increase in density to it. Memory foam mattress can be called viscoelastic polyurethane foam. The bed was developed so that you can meet the desire of the mattress consumers.The Polyurethane Foam Mattress' real history might be traced back again to NASA's Ames Research Center. NASA's Ames Research Center borrowed a task to design a bed foam that can help to relieve pain of the astronauts caused by g-forces back within the 1970s. NASA assumed that the foam material should be applied to conform to the body's form. The individual might eventually move-out of the positioning, though creating a mold for the body can help fix the situation. As a result, wrong stress points will soon be established to the body. Later, a way to develop a foam that can evolve the your body's appearance was found by the study group from NASA's Ames Research Center. It is a visco elastc foam that could evenly spread the weight of the body for the foam floor.on the web or in storeThe finding induced Fagerdala World Foams of Sweden to try out it and offer it to the buyers. In 1991, Tempur Pedic, a business located in Sweden bought the research mattresss foam for the people in Sweden. After that, Tempurpedic sold the memory mattress foam for the people that live in Canada and United States. Tempur Pedic's bed became extremely popular. The success of Tempur Pedic had caused the companies to create their particular versions of memory foam mattresses and promote them towards the local buyers.Synthetic polyurethane foam material can be used since the foam memory. The mattress manufacurers may add several kinds of chemicals to alter the occurrence of the foam. The foam could have greater thickness, after the substance is added. Besides, a viscoelastic foam product will be added by producer. The visco elastic foam is nontoxic. Howmuch compounds are utilized within the foam's manufacturing process detemins the foam weight. Most memory foam mattress has a fat of 4 - 5lb. Lighter memoryfoam bed fat in between 2 - 3 pound.