Memory Foam Pillow
Memory foam pillows are designed to support the neck and head, relieving pressure on joints and enabling a better night’s sleep. The memory foam pillow simply changes shape (by reacting with the heat from your body) to fit perfectly around your around the contours of head and neck. The visco elastic technology was used by NASA to help astronauts distribute pressure, to ease the pressure of extreme G-forces.
Memory foam is made from polyurethane and chemicals which help increase the density of the foam. When new, the memory foam often gives of a distinct chemical. This fades with airing, however, some people still remain sensitive to it.