Memory foam, as the name tells us, is foam that can conform and memorizes the exact shape of previous form. NASA was the first who developed memory foam in the 1970s to ease the extreme gravity force pressure when launching space rocket. In the early state of memory foam research, it was tend to be brittle and was often crack easily. Moreover it gave displeasing smell which was not suitable to use in closed area. However, later in the 1980s a small Swedish company, Tempur-Pedic, made a further research on this amazing material. They refined their own version of memory foam to be more durable and usable. At first, Tempur-Pedic tended to manufactured memory foam for medical proposes. Most of them were used with patients who suffered from back problems to ease their sleep. But later Tempur-Pedic foresaw a benefit of using memory foam in household. Thus they decided to produce memory foam products available for general public use. Although in the beginning of memory foam public release in the 1990s, it still remained a luxury expensive sale. But thereafter, other companies have developed a similar material as memory foam and made it became more affordable are available in the market.
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