Love these pillows
I have a bulgy disk in my neck (second one down, unfortunately).  As a result, my neck hurts if it doesn't get proper support.  Ever since I started using these pillows, my neck pain went away. I tried using another pillow for awhile, but my neck pain returned.  After one night with this pillow -- wammo -- pain gone.  Works for me!  When sleeping on my back, I use the center part of the pillow, which is scooped out.  For side sleeping, I use either end of the pillow.  For what it's worth, years ago I changed the way I sleep (used to partially sleep on my stomach, with my neck a little twisted in so doing).  The chiropractor suggested eliminating that position, so now I sleep either on my side or back.  That helped a lot, but without this pillow, my neck still bothered me, hence use of the tri-core pillows.
Rating: 5 stars