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Have you ever wondered what exactly is a memory foam mattress? A memory foam mattress is a bed that is constructed using what is known as memory foam. This foam works in a way that will form to your body as it is pressure and heat sensitive. These mattresses are especially great for easing stress on pressure points, keeping your body in proper alignment, and will help you not to toss and turn as much.

Memory foam was originally built back in the 70’s by NASA. When it was first released there were some problems with it as it was too brittle and would not hold up longer that a year or two.

It took about 10 years of research and development before a Swedish company that had helped NASA develop memory foam finally figured out the right formula for the memory foam mattress that actually held up over time. This was made using a spongy, gel like plastic whose composite open cells could deform under pressure and reshape back to its original form.

One major brand name soon started selling these to hospitals which helps to prove some of their claim of effectiveness. The testimonials from the patients who use the memory foam all attest to the fact that is has dramatically reduced a lot of the pressure that they had on their joints with the previous types of mattresses. It also gives good support for the back.

It wasn’t until the early 1990’s that the first memory foam mattresses were introduced into the mainstream marketplace. The problem then was that these were very expensive. As their popularity grew though and other manufacturers were able to figure out the process and make competing products the price came down.

But the story of the memory foam mattress doesn’t end there. There have been many more developments with this wonderful product and as a result we have things like mattress toppers, pillows, office furniture,ear plugs, seating in theaters and many other wonderful applications.

The price of memory foam mattress is from $300 to $4000. One of the main factors that goes into the pricing of these is the density of the foam. You will pay more for a mattress that is thicker than a mattress that is thinner.

For most individuals a budget fitting weight is around 3 to 5.5 pounds.

It is easy to discover these mattresses both online and in retail stores in your local shopping mall. These come in different sizes so you can surely get one for every bedroom in the house and if you find these expensive, perhaps you should consider getting a topper.

With a topper, all you need to do is place it on top of your existing mattress, so they are much cheaper and smaller. Its thickness is 1 to 4 inches thick. If you plan to put this over a spring mattress, make sure that this is not more than 5 years old.

The air temperature is not something that you need to worry about affecting the memory foam. If this happened, it will not be able to do its job which is to adjust to the shape of the person.

You might be asking yourself the question on whether all of the separate makers of memory foam mattresses make them the same. This is not true because some use liquid foam while others use a vacuum injection which means they do not rely on gravity to provide consistent density and eliminate variation. Take this information with you when you are shopping for mattresses and make sure of the type of foam that them mattress has that the salesperson is pushing.

A lot of individuals say that the memory foam mattress is out of this world given that this was first designed for use by astronauts. Given that it is used in almost every type of furniture these days, you can now say that it has taken the world by storm.