THIS PILLOW IS MANUFATURE BY TEMPUR-PEDIC THE MAKERS OF MATTRESS AND PILLOW,THIS MATERIAL WAS DESIGNED BY NASA SO THAT THE ASTRONAUTS WOULD NOT FEEL THE G-FORCE IN SPACE AND WHEN THEY LANDED IN SPACE OR EARTH.  TEMPUR-PEDIC BOUGHT THE PATENT AND MADE A MATERIAL CALLED TEMPUR.  THAT MODELS TO YOU HEAD,NECK AND SHOULDERS.  GIVING YOU  A CUSTOM FIT PILLOW FOR GREAT  REST AND SLEEP.