Foam mattress is just a sort of mattress that is created from polyurethane. Besides memory, it is also made from other forms of chemicals. The chemicals which can be included with the bed foams offers it the capacity to increase in occurrence. Memory foam mattress can be called visco elastic memory foam. The bed originated as a way to meet the bed shoppers' demand. The history of the Polyurethane Foam Mattress may be traced back again to the Ames Research Center of NASA. NASA's Ames Research Center financed a task to create a mattress foam that will help to ease backpain of the astronauts caused by g forces inside the 1970s. NASA believed that the foam product should be used to comply with your body's form. The individual could eventually transfer of the position, although developing a form for your body can help fix the problem. To the body, improper pressure points will soon be produced consequently. Later, the study staff from the Ames Research Center of NASA found a method to produce a foam that may adapt the the body's form. It is a visco foam that can consistently distribute the human body's weight towards the foam area. http://www.memoryfoammattress-guide.org/labor-day-sales-memory-foam... Polyurethane foam material is used whilst the foam memory. The bed manufacurers will add several kinds of substances to change the occurrence of the foam. The foam can have greater thickness after the compound is included. Besides, the manufacturer may add a viscoelastic foam material. The visco elastic foam is non-toxic. Howmuch chemicals are employed in the foam's manufacturing process detemins the foam fat. Lighter memory foam mattress fat between 2 - 3 lb. In 1991, a company situated in Sweden, Tempurpedic sold the study mattresss foam to the people in Sweden. Next, Tempur Pedic bought the memory mattress foam for the people that live-in Usa and Canada. Tempur Pedic's bed became popular. Tempur Pedic's achievement had caused the suppliers to produce their own designs of foam mattresses and provide them towards the local people.