My BG-X pillow worked very well for about 5 1/2 months. After a short initial break in, it helped keep my head and neck well-positioned and stable. I slept more deeply and awakened much more rested than I had with previous pillows. Unfortunately the pillow has broken down in what I consider a very short time with normal use and I’m no longer getting the same level of support and comfort it provided just a few months ago.