Memory Foam Mattress

Memory foam was created for NASA in the 1970's. It became available to the public first as a mattress topper and then in the 1990's the full memory foam mattress was put on the market. Since then the memory foam mattress has become the fastest growing product in the bedding industry. With more companies selling their version of the memory foam mattress consumers have become more and more confused about what they should be looking for when considering a memory foam mattress for themselves. Memory foam, or visco-elastic polyurethane foam, is made from the same material used in thermal insulation. The other chemicals that are used in the production of memory foam are a closely guarded secret. Chemists have created many combinations of chemicals, resulting in various densities of memory foam. Each kind is slightly different, but they all share the same astonishing properties. On a regular mattress, metal springs keep your body from falling through. They flex under your body's weig...
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