Memory foam, as the name implies, is a kind of foam with memory, how it can provide support and comfort to our bodies and do not forget to make the necessary adjustments to the physical state when they change. Relief relieve you of course, twisting and turning while absorbing body heat and pressure. Memory foams are to be used in space shuttles used by NASA to reduce the effects of gravity on the astronauts were later abandoned. It was thenused for bedridden patients with paralysis and coma.

Memory foam is now used to make mattresses, pillows and toppers too. It is cheap and easily available everywhere. Polyurethane is the base material, are made with memory foam and promote chemical added to increase the visco-elasticity of the foam, which in turn increases the density. Polyurethane foam is a fully cross-linked reaction product of polyhydroxy polyol, toluenedi-isocyanate, catalysts, surfactants, pigments and water. Polyurethane foam product is a polymer material, which consists of repeating units of carbon, hydrogen, oxygen and nitrogen. It is integral to the cool temperatures and softer when warm, thanks to its density and chemical composition. Our body responds to this heat and memory foam mattress and then adjusts to the desired shape to take and provides warmth.

A memory foam with low density Pressure-sensitive and die more quickly to the shape of the body. These foams balancing the pressure on the entire surface of the body, reduce pain and stress, thus offering comfort. A memory foam mattress is usually denser than an ordinary foam mattress, which makes it more support, but also heavier. The heavier the foam, the longer it will take the form without sagging or loose and dense regenerating properties to maintain > Foam, the longer it will last.

The property of strength (hard, soft) of memory foam is responsible for determining comfort. The strength is measured by indentation force-deflection of foam. IFD measures the force (in kg) needed to make a hole of 1 to "announce Foam 15" x 15 "x 4" by 8 inches in diameter (50 sq in) disc - as IFD @ 25% compression. Review of super-soft IFD IFD is 10 and for Semi-rigid 20 IFD, it is the most memory> Foam mattresses are firm (IFD 12 to IFD 16).