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By: Imattresses Webmaster
Memory foam was developed during the 1970s as a NASA design to produce a g-force resistant material for astronauts during lift-off. It was suggested that the extreme g-force exerted created undue pain and pressure to the body and that a material made of foam could be utilized to minimize this. Upon deliberation, it was found that an already impressed foam design would provide little support should there be a shift in position or movement, however, a new material could be implemented that would react to each movement accordingly. A visco-elastic foam product was created that contoured the astronaut's body and was not limited to sudden motion or body displacement. The ability to evenly distribute body weight helped in easing joint pressure and became an essential part of astronaut life. It wasn't until the nineties that this material was available to the North American masses after experiencing a huge success in Europe.

Memory foam mattress is first constructed from a visco-elastic foam base. This is created by using a synthetic polyurethane foam item and treating it with certain chemicals to increase density. This results in a non-toxic product that easily conforms to the body and is also heat sensitive. The memory foam from memory foam mattress is generally graded based on durability and the nature of the visco-elasticity. To do this, manufacturers use a system of weight, Indentation Load Deflection (ILD), resilience, and tensile to systematically evaluate the foam.

These products are available in environmentally friendly versions as well. As an answer to the high levels of standard mattress in landfills, some manufacturers have started to use soy based materials for a certain portion of memory foam mattress. Due to the nature of these products, however, these mattresses can never be completely natural but, generally, all well-made memory foam mattress are not harmful to the environment as they contain no CFCs or other environmentally destructive chemical retardants. Instead, many companies have instead opted to use eco-friendly applications that render the memory foam mattress naturally antibacterial and hypoallergenic.

Like all good things, many imitations have arisen as market competitors. However, it is extremely important to purchase a high-grade memory foam mattress to ensure the longevity and effectiveness of the foam. Lower grades usually lack the heat sensitivity feature that is essential in contouring the body and relieving many back, hip, shoulder, and joint pain associated with restless sleep. Hence, well-made and heat sensitive memory foam mattress is the absolute best in the market. It is imperative to research and test the mattress prior to purchase. Be sure to ask as many questions as possible to fairly and adequately evaluate the available choices.

Memory foam mattress is perfect for people who have restless sleeps as a result of physical disorders or general discomfort from standard mattress. These products allow a restful night's sleep without the tossing and turning associated with coil spring or futon mattress. By conforming to each individual's body, the memory foam mattress is perfect for couples or singles as each body is perfectly acclimated to. Memory foam mattress is wonderful to ensure a restorative sleep!

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