Memory foam mattresses have revolutionized the concept of support, and have radically improved the quality of sleep for much of the population. Memory foam was developed originally by NASA, but the use in beds realized until tempur-pedic came along. Now Memory foam is used in everything from memory foam combined with other foam, memory foam over top of latex, memory foam combined with metal coils, and even memory foam over top of air chambers. Many people are realizing the improved quality of sleep that a memory foam mattress can provide, and here at eBedStore, we are determined to provide these types of mattresses at below market prices.