Resting and sleeping are vital functions of the human body. In order to be at your best you need several hours of sleep a day. Now it is true that the number of hours vary for each individual. But one thing is definite: if you are sleeping on a hard, lumpy mattress then you probably spend most of the night tossing and turning. Having the right mattress is absolutely essential. A bad mattress can lead to numerous physical conditions that make it nearly impossible to get the rest you need. Memory foam mattresses have really hit the market hard and are gaining in popularity because of their “space age” design that is supposed to guarantee you a restful night’s sleep. This article will cover just a few of the basics where memory foam mattresses are concerned. You may want to check one out for yourself if you are having trouble sleeping.