Memory Foam is one of the most unique material in the planet. The material’s exclusive properties stem from the unusual features of its cell structure. Unlike standard foams that only partially compressor when under pressure, memory foam cells compress fully when pressed upon by another force before returning gradually to their original shape.
The term memory foam seems to have been adopted because the foam “appears to remember” the shape of the last object placed upon the surface.
Memory foam is also temperature sensitive. This means that at lower temperature it is harder (more viscous) and at higher temperature it is softer and bouncier (more elastic). This is the reason that memory foam is also known as Visco-elastic foam.