Foam mattress is just a sort of bed that is produced from memory. Besides polyurethane, it is also created from other styles of compounds. The chemicals that are put into the bed foams presents it the capacity to increase in occurrence. Memory foam mattress can also be called visco elastic memory foam. The mattress originated as a way to meet with the mattress shoppers' need.The history of the Polyurethane Foam Mattress could be traced back again to the Ames Research Center of NASA. The Ames Research Center of NASA financed a project to design a bed foam which will help to relieve back pain of the astronauts caused by gforces in the 1970s. NASA considered the foam product must be applied to comply with the body's design. Although making a shape for your body will help resolve the problem, the person might ultimately move out of the position. Around the body, wrong stress points will soon be formed because of this. Later, ways to produce a foam that can conform the the body's form was discovered by the study team from the Ames Research Center of NASA. It's a visco foam that could consistently distribute the weight of the human body towards the foam surface.www.mattress-inquirer.com/spa-sensations-memory-foam-mattress-reviews/Polyurethane foam product is used since the foam memory. The mattress manufacurers can add several kinds of chemicals to alter the occurrence of the foam. The foam could have higher density after the substance is added. Besides, the maker may add a visco elastic foam material. The viscoelastic foam is nontoxic. The foam fat is detemined by how much compounds are utilized in the foam's manufacturing process. Brighter foam bed weight in-between 2 - 3 lb. In 1991, Tempurpedic, an organization based in Sweden bought the investigation mattresss foam towards the people in Sweden. After that, Tempur Pedic offered the memory mattress foam to the people that reside in Usa and Canada. Tempurpedic's bed became popular. The success of Tempurpedic had caused the makers to generate their own types of foam beds and promote them to the local buyers.