There are very few people who have never heard the term "memory foam", but most do not know what this material is or why it is so good on the bed.
Called "Visco elastic memory foam" correctly, this material is different from ordinary foam in several ways, all of which make it ideal as mattress filler. You can also get the best memory foam mattress online via this source: Memory Foam Mattress – 624 Mattress in a Box
Memory foam is mainly made of polyurethane, but its density and viscosity increase through the addition of further chemicals and these results in finished products having some unusual characteristics, but is highly desirable.
What is good about memory foam?
One of the problems with conventional spring mattresses and foam mattresses is that they distort under pressure in a direct and fairly diffuse manner. This means that the mattress not only deflects directly and directly below the body area, but also in the area around and to the side of the body.
Memory foam has a very different way of deflecting which sees it not only deflect but also shapes itself around the person who put it.
Memory foam can accommodate the print characteristics that are unique to almost all sizes and weights of objects. This is often indicated by pressing the hand into a viscoelastic foam block, resulting in a trace of short-lived individual fingers and palms in the material.
Doing this to a conventional bed will only cause a level of deflection in the area around the hand that will be proportional to the pressure applied.