D-Core is great!
D-Core® Support Pillow
I have personally tried more than 20 pillows over the past few years. None have given me the restful sleep that the D-Core has. I was almost in tears after the first couple of nights. I've had laminectomy and fusion surgeries, and also suffer with moderate to severe stenosis on four levels. So I have some chronic spinal issues. For my unique circumstances this is the best pillow I've ever owned and I've noticed (along with PT) a significant reduction in neck pain and stiffness.