Gravity is not our neck's friend.
Where was this for most of my life?  Having suffered a bad horse riding accident and some car accidents, my neck has issues.  This inflatable device is well made and incredibly comfortable.  The key is to relax as much as possible and after a half hour or so, you can achieve some spectacular neck cracks just by rotating a slight bit to either direction.  So relieving at times, I've fallen asleep.
Rating: 5 stars