Foam mattress is a kind of mattress that is created from memory. Besides polyurethane, it's also created from other styles of substances. The compounds which can be put into the bed foams allows the ability to increase in thickness to it. Memory foam mattress can also be called visco elastic memory foam. The bed originated in order to meet the mattress shoppers' demand. The Polyurethane Foam Mattress' annals can be traced back again to the Ames Research Center of NASA. The Ames Research Center of NASA financed a project to create a mattress foam that will help to ease pain of the astronauts due to g-forces back within the 1970s. NASA assumed the foam product must be applied to conform to the shape of the human body. The individual would ultimately transfer of the positioning although developing a shape for that body will help solve the situation. Because of this, improper pressure points is going to be produced about the body. Later, a way to produce a foam that can adjust the the body's shape was located by the investigation staff from the Ames Research Center of NASA. It is a elastc foam that may evenly distribute the weight of your body for the foam area. Best mattress for back pain The discovery triggered Fagerdala World Foams of Sweden offer the people it and to test out it. In 1991, a business located in Sweden, Tempur Pedic bought the people the investigation mattresss foam in Sweden. After that, Tempurpedic offered the memory mattress foam towards the people that live-in Canada and United States. Tempur Pedic's mattress became very popular. The success of Tempur Pedic had caused the makers to make their particular designs of foam mattresses and sell them towards the local people. Polyurethane foam product is used since the foam memory. The bed manufacurers can incorporate several kinds of substances to alter the density of the foam. The foam will have greater density, after the substance is added. Besides, the manufacturer will add a visco elastic foam material. The viscoelastic foam is non toxic. The foam weight is detemined by how much chemicals are utilized inside the production procedure for the foam. Lighter memory foam bed weight between 2 - 3 pound.