Memory foam mattress is just a form of bed that's made from memory. Besides memory, it's also produced from other styles of substances. The substances which can be added to the mattress foams provides it the capability to increase in density. Memory foam mattress can be called visco elastic polyurethane foam. The bed originated in order to meet with the bed shoppers' need. The Polyurethane Foam Mattress' history might be traced back again to the Ames Research Center of NASA. The Ames Research Center of NASA backed a project to style a mattress foam that can help to ease pain of the astronauts due to g-forces back inside the 1970s. NASA thought the foam product should be applied to conform to the human body's design. The person would eventually transfer of the positioning, though making a mold for your body will help resolve the problem. To the body, improper pressure points is going to be formed as a result. Later, a way to produce a foam that could conform the your body's design was identified by the research staff from the Ames Research Center of NASA. It's a elastc foam that may consistently spread the human body's weight to the foam area. options of mattress-inquirer In 1991, a business located in Sweden, Tempur Pedic sold the people the investigation mattresss foam in Sweden. After that, Tempurpedic bought the memory mattress foam to the people that are now living in Usa and Canada. Tempurpedic's mattress became extremely popular. Tempur Pedic's success had caused the makers provide them for the local consumers and to generate their own designs of foam mattresses. Polyurethane foam material is employed as the foam memory. The mattress manufacurers may add several kinds of chemicals to improve the density of the foam. The foam will have greater thickness, after the substance is included. Besides, producer can add a visco elastic foam material. The visco elastic foam is non-toxic. Simply how much chemicals are used inside the foam's manufacturing process detemins the foam weight. Many foam mattress features a fat of 4 - 5lb. Lighter memoryfoam mattress weight in between 2 - 3 pound.