I was very hopeful after months of back/shoulder pain. I finally ordered my Pluto Pillow hoping for some relief. I filled out my information in great detail and the pillow arrived as scheduled. I had been warned there would be a break in period. Mine was apparently one night!! The first morning after sleeping on my Pluto I had relief - less pain but not gone. By the fourth morning, no pain. I already got one for my wife and her experience was pretty much the same. I'm a back sleeper and she is side so it can work for everyone.