Memoryfoam mattress is a form of bed that is produced from polyurethane. Besides polyurethane, it is also produced from other forms of chemicals. The compounds that are included with the mattress foams provides the capability to increase in thickness to it. Memory foam mattress is also called visco elastic polyurethane foam. The bed originated to be able to meet with the bed shoppers' requirement. The Foam Mattress' real history may be traced back again to NASA's Ames Research Center. The Ames Research Center of NASA funded a project to design a bed foam that can help to alleviate backpain of the astronauts caused by gforces in the 1970s. NASA considered that the foam material must be applied to comply with the design of the human body. Though making a mold for that body will help solve the issue, anyone would ultimately move-out of the position. As a result, incorrect stress points will be produced to the body. Later, the research group from the Ames Research Center of NASA identified a method to create a foam that could conform the your body's shape. It's a visco elastc foam that could equally spread the weight of your body towards the foam surface. http://www.memoryfoammattress-guide.org/labor-day-sales-memory-foam-mattresses/ Synthetic polyurethane foam product can be used whilst the foam memory. The bed manufacurers may include various kinds chemicals to improve the density of the foam. The foam can have higher density, following the chemical is added. Besides, a viscoelastic foam product will be added by producer. The visco elastic foam is non toxic. The foam weight is detemined by how much compounds are utilized within the foam's manufacturing process. Most polyurethane foam mattress features a fat of 4 - 5lb. Brighter polyurethane foam mattress weight inbetween 2 - 3 pound. The development triggered Fagerdala World Foams of Sweden provide it for the people and to try out it. In 1991, Tempurpedic, an organization situated in Sweden bought the study mattresss foam for the people. Next, Tempurpedic bought the memory mattress foam for the people that reside in Usa and Canada. Tempur Pedic's mattress became popular. Tempur Pedic's achievement had caused the makers to create their own types of polyurethane foam beds and offer them for the local buyers.