What people should realize is that Tempurpedic mattresses are no different from memory foam beds. These are also beds whose technology was taken from NASA but it is just this kind of mattresses have a higher foam density than the ordinary foam beds.
Memory foam beds are medically tested to make sure that they live up to the purpose of their development, which is to protect the bones. Sleeping on beds that are either too soft or either too hard can cause bone deformities such as scoliosis. This is also the reason people suffer from a stiff neck after a long night of sleep. More...
Memory Mattress