NASA developed memory foam in the 1970s. The product then entered the consumer market. A number of companies have begun to replicate the memory-foam formula. Its unique property is that after being compressed, it will return to its original state. It is a long-lasting material that provides support while conforming to the body's contours. Some items manufactured with memory foam include mattress toppers, shoes, cushions and pillows.
Although a memory foam pillow will fit in the washing machine, it is not advisable to do so. Memory foam is constructed of tiny, porous foam cells. These cells will hold the water particles long after it comes out of the washing machine and has been rung out to dry. This can facilitate fungus growth and also destroy the memory foam's compression properties.
A quality pillow case will limit the amount of dust, dirt, debris, seat and body oils that touch the pillow's surface. Shop for a memory foam pillow that has a removable pillow case. Also, washing the pillow case frequently will reduce the chance of your pillow developing smells. Memory foam pillow protectors, which provide another barrier of defense against spills, stains and odors, are also available.
If liquids reach the surface of the memory foam, spot cleaning is the only way to wash the memory foam. Mix a mild solution of detergent with warm water. Dampen a cloth with the solution and use it to dab and gently wipe the pillow. Do not saturate the foam. Use a paper towel to absorb as much moisture off the pillow as possible after cleaning it. Place the pillow in a well-ventilated area to dry.