ZERO-PRESSURE MEMORY FOAM PILLOW: using aviation-grade memory foam material with 45-50D density, it will return to its original shape within 3-5s after pressing. The air inside can be exchanged with the outside, and sink when under pressure. Therefore, it fits the neck to the maximum and reduces the pressure on the body surface to a minimum, truly zero pressure. Thereby improving the blood circulation of the skin, reducing the number of turning over, and improving the quality of sleep.
