Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Neck Bones

I purchased this for some one who has chronic neck problems. He goes to the chiropractor every couple of weeks. When he put this behind his head while sitting on the sofa, he said it made a difference in the tension in his neck. I had purchased two. I am a side sleeper and what I found is that its the perfect pillow to hug, rest my chin on and keep my shoulder from falling too far forward while I sleep. So it might be a 'neck' bone, but it's also a good sleeping tool for side sleepers.