Tempur-Pedic is a mattress brand using special, dense memory foam originally developed by NASA for astronauts, focusing on pressure relief and body contouring; the name combines "Tempur," referencing its temperature-sensitive nature, and "Pedic," signaling its bed/sleep function. It's known for unique viscoelastic foam that adapts to body weight, shape, and temperature for personalized support, unlike standard memory foams.