GREAT PRODUCT!!! Best sleep I’ve had in years of trying to find the right pillow. In addition, this pillow has been very therapeutic as I have arthritis in my deck and some disc degeneration. I was elated to wake up with less stiffness and more flexibility in my neck. I plan to buy more to replace all of our other “pillows” bought at high-end stores and with the typical popular market brand names – but this pillow has been the best investment by far. Thanks.