I have been through many pillows and have found not all work as claimed. My husband also has tried many different pillows and typically can’t use one while sleeping due to lower back surgery. When we received the SensorPEDIC Medium Density Pillows we were excited to give them a try. I have to say I’m impressed with these pillows. My neck and spine feel fantastic when I wake up. I don’t feel I am tossing and turning during the night. The fact that they also have cooling technology is amazing. I can literally feel the coolness coming off the pillow. I have noticed my husband uses his while  propped up watching television and ends up using it to sleep. I asked him how his spine and neck felt and he replied with, fantastic. I am very happy with the SensorPedic pillows.