Educational Toys Guide
Getting Down With A Memory Foam Mattress
In Educational Games of Advisor (February 3, 2010 7:51 pm)
Many people sing the praises of the memory foam mattress, especially those who really need good support while they’re sleeping, yet who have a difficult time with mattresses that are as hard as a board. These beds are made of a substance called visco elastic foam, and it’s the special properties of this foam that makes the mattresses so comfortable, yet which also enables them to provide such excellent support.
Visco elastic memory foam is denser than other types of foam in household use, and is made of millions of tiny spherical cells that are weight and temperature sensitive. These properties make it firmer when the temperature is cool, and softer when it’s warm. What this means for you is that a memory foam mattress will react to your body’s heat and gradually conform itself to your shape. It will be firm when you lie down, but slowly contour around you and support you as you sleep. Yet it “remembers” its own shape and returns to it once you get up, and the foam cools down. This is where memory foam gets its name, of course.
There’s more to the support than that, though. The visco memory foam only heats up and becomes elastic down to a certain depth. So the top layers of cells will soften and adapt to your body shape, yet the foam farther down remains as cool as before, and therefore doesn’t change. So it retains its shape and provides extra underlying firmness, meaning that memory foam mattresses give you both the contoured support above and the firm support below.
Another factor in both the support and the shape of the mattress is its own density. You might find inexpensive memory foam mattresses with a density of 1.5 pounds per cubic foot, and another of 8 pounds. A higher density will provide more support and relief for those with hip or back problems. Additionally, there are single, double, queen or king size memory foam mattress choices available, as well as memory foam contour pillows.
The end result for the sleeper is that a memory foam mattress relieves pressure points on the body; those areas that press harder into the mattress. These points are why people can get stiff even while supposedly relaxing in sleep, and are also the places where they develop bedsores if they are bedridden for quite some time. Visco elastic memory foam supports every part of the body equally, so no part of it is pressing into the mattress harder than any other.
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