Memory foam mattress is a kind of bed that's produced from memory. Besides polyurethane, it is also created from other types of chemicals. The substances which might be put into the mattress foams allows it the capacity to increase in thickness. Memory foam mattress is also called visco elastic memory foam. The mattress was developed in order to meet with the mattress shoppers' requirement.The Polyurethane Foam Mattress' history can be traced back again to the Ames Research Center of NASA. NASA's Ames Research Center financed a task to design a mattress foam that can help to relieve backpain of the astronauts due to g-forces in the 1970s. NASA assumed that the foam material ought to be used to adapt to the design of the body. Although creating a mold for that body can help solve the issue, the person would eventually move out of the positioning. Consequently, incorrect stress points is going to be established to the body. Later, ways to produce a foam that will adjust the your body's appearance was found by the study team from the Ames Research Center of NASA. It is a elastc foam that can equally distribute the human body's weight towards the foam surface. In 1991, Tempurpedic, a business located in Sweden offered the investigation mattresss foam to the people in Sweden. Next, Tempur Pedic sold the memory mattress foam towards the people that reside in United States and Canada. Tempurpedic's bed became extremely popular. The achievement of Tempur Pedic had caused the manufacturers sell them to the local consumers and to produce their particular designs of foam mattresses.consumer reports mattressesPolyurethane foam material can be used as the foam memory. The bed manufacurers will incorporate several kinds of substances to improve the thickness of the foam. The foam can have higher density, following the substance is added. Besides, a visco elastic foam product will be added by the maker. The visco elastic foam is non toxic. How much substances are utilized inside the foam's manufacturing process detemins the foam weight. Lighter memoryfoam bed weight inbetween 2 - 3 pound.