A memory foam mattress topper is really just the top part of a memory foam mattress. By getting a mattress topper you can achieve the same results as if you were to buy the mattress itself. A memory foam mattress is composed of two parts, the support foam and the memory foam topper. The memory foam is what provides you with the pressure relief but is not able to provide the support for your body weight. If you are not in need of an entire new mattress then a topper will be sufficient for obtaining the advantages of the memory foam system.

In the early 1970's NASA developed Visco-Elastic memory foam at its Ames Research Center as a way to help the astronauts deal with the g-forces that they experience during lift off. Memory foam is made up of billions of high density viscoelastic memory cells. These cells are spherical and open celled with windows that allow them to shift their position when you move so they conform to your body. Memory foam bed toppers are a high density temperature sensitive product that gets softer with heat and body warmth lets it know where you are. Your body heat will let your memory foam know just how far to let you "sink in" and where it should move when you do.

With the unique design of the memory foam mattress topper you and your partner will both be able to get a good nights sleep as it will recognize each of you as individuals and provide you both with the comfort needed individually. There is no bouncing around or movement of the bed if other person moves while you are asleep. The longer you lie on the foam the better it fits your body and this has the orthopedic advantage of keeping your spine and neck in line as to not cause muscle tension during sleep thus allowing your body to actually rest.

There are many places to find discount memory foam mattress toppers and of course you will sometimes sacrifice quality if you are not careful in looking at these. As with everything else there imitations and those that employ straight up deception when trying to get you to buy their product. When you press your hand hard into memory foam it will feel as if it is trying to push back at you and when you remove it you will be able to see that push as well.

There are mainly four different thicknesses when it comes to memory foam mattresses toppers and they are 1, 2, 3, and 4 inch and the density is up to 4 pounds. Some toppers are made of solid memory foam, some are contoured, and some are made with a foam base. You will want to know exactly what you are getting as this is also an area where you could be deceived when it comes to getting what you pay for.

A good place to start your search would be Serta memory foam toppers as they offer a good variety of quality American made products. With Serta memory foam you will get what you pay for as all of their products offer a detailed description, a very good price, and hypoallergenic products as well.

There seems to have been some problems lately with memory foam that comes from Asia. It has been said that in some products they use chemicals such as formaldehyde that has been causing skin irritation and others are reporting a strong odor that smells like vinegar. If your memory foam topper is manufactured overseas it is not subject to the regulations that are imposed here in the United States and you run a much higher risk of getting something that could make you sick.

In reading memory foam toppers reviews you will be hard pressed to find a bad review of a product that has been made here in America. It would seem that once having slept on memory foam that nothing else will do. Those using the products seem to feel much happier, healthier and rested and report less body stress and pain during the day. Many like it so well that they purchase memory foam crib toppers for their infants. It is said to be the greatest advance for the sleeping world in the past 75 years.