Memoryfoam mattress can be a type of mattress that's created from polyurethane. Besides memory, it's also produced from other forms of substances. The substances which can be put into the mattress foams presents the ability to increase in density to it. Memory foam mattress is also called visco elastic memory foam. The mattress originated in order to meet the mattress shoppers' desire. The annals of the Foam Mattress could be traced back again to the Ames Research Center of NASA. NASA's Ames Research Center financed a task to create a bed foam which will help to relieve back pain of the astronauts caused by g-forces inside the 1970s. NASA assumed the foam material must be used to comply with the shape of the human body. Although making a form for the body can help fix the situation, anyone could eventually move-out of the positioning. Because of this, wrong pressure points will soon be established about the body. Later, the study team from NASA's Ames Research Center found a way to develop a foam that may evolve the your body's shape. It is a visco foam that can evenly spread your body's weight towards the foam surface. Polyurethane foam material is employed while the foam memory. The bed manufacurers can add several types of compounds to improve the density of the foam. Following the substance is included, the foam could have higher density. Besides, a visco elastic foam material will be added by producer. The viscoelastic foam is non-toxic. Howmuch chemicals are used within the manufacturing procedure for the foam detemins the foam weight. Lighter polyurethane foam mattress fat in between 2 - 3 pound. In 1991, a company situated in Sweden, Tempur Pedic offered the people the study mattresss foam in Sweden. Next, Tempur Pedic bought the memory mattress foam for the people that live-in Canada and Usa. The mattress of Tempur Pedic became popular. The achievement of Tempurpedic had caused the suppliers to make their own variations of memory foam mattresses and provide them towards the local customers.