Bought 2 to make sure I always have one(my wife might borrow it). I had been taking lots of meds for neck, back, shoulder, hip and knee injuries. And especially for sleep due to heavy PTSD.  Now, I take only one mild pain pill every now and then. Completely off sleeping pills. It used to take me hours to fall asleep. Now, within 15 minutes.  Consequently, I have much more energy during the day. I am 100% Combat Disabled. The extra cost for this pillow was well worth it.