Foam mattress can be a sort of mattress that is made from polyurethane. Besides polyurethane, it is also produced from other types of compounds. The chemicals which can be put into the mattress foams offers the ability to increase in occurrence to it. Memory foam mattress can also be called viscoelastic memory foam. The bed was created so that you can meet with with the desire of the bed buyers. The annals of the Polyurethane Foam Mattress may be traced back to NASA's Ames Research Center. The Ames Research Center of NASA backed a task to create a mattress foam which will help to relieve pain of the astronauts due to g-forces back in the 1970s. NASA considered that the foam product must be applied to comply with your body's shape. The individual might ultimately move-out of the position, although creating a form for that body can help resolve the problem. To the body, inappropriate stress points will soon be established as a result. Later, a way to develop a foam that could conform the the body's condition was discovered by the research staff from the Ames Research Center of NASA. It's a elastc foam that could evenly spread your body's weight towards the foam area. memory foam mattress reviews The finding induced Fagerdala World Foams of Sweden provide the consumers it and to experiment with it. In 1991, a company located in Sweden, Tempurpedic offered the people the study mattresss foam in Sweden. Next, Tempurpedic offered the memory mattress foam towards the people that reside in Canada and United States. Tempur Pedic's mattress became very popular. Tempur Pedic's achievement had caused the companies to create their particular types of memory foam beds and offer them to the local customers. Polyurethane foam material is employed because the foam memory. The mattress manufacurers will add various kinds chemicals to improve the thickness of the foam. The foam will have greater thickness, following the compound is added. Besides, the manufacturer can add a visco elastic foam material. The viscoelastic foam is non-toxic. Howmuch chemicals are used within the production procedure for the foam detemins the foam weight. Many polyurethane foam mattress features a weight of 4 - 5lb. Lighter polyurethane foam bed fat between 2 - 3 lb.