Before we look into anything else, it is important that one first must understand what is a memory foam. Individuals talk about it as a product developed for sleep while the truth is that it was first originated for the use of NASA in 1970s. They were looking to make the life of astronauts comfortable and in the attempt they developed memory foam. But only a few people actually know that it was never used. The foam is visco elastic and is able to isolate the motion and adopt to the natural curvature of the body. Thus, it enhances the chances of sustaining crashes.