What Is Memory Foam?


Quick Answer

Memory foam, made from viscoelastic, is a substance commonly used to make pillows, mattresses and mattress covers. Memory foam changes its shape when heat or pressure is applied, and it spreads weight evenly across its surface. After the force is taken away, the memory foam regains its original shape.

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Full Answer

Memory foam was originally developed during the 1960s for NASA aircraft seats. The goal was to make seats more protective in the event of a crash. The appeal of memory foam has broadened, and new uses include cushioning football and racecar helmets, making prosthetic devices more comfortable, serving as shoe insoles, and preventing pressure ulcers in people with disabilities. Memory foam is also used by the military to absorb shock in bulletproof vests and vehicle seats.

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