I have a bulge disc. This product is GOOD, but needed to be modified, by having my bolster part (round), sewed onto the pillow itself, creating a a triangle lift. See, my neck is SMALL, the round part of the bolster was excellent however the pillow itself never got to my head! my head rested in the groove between the pillow and the round bolster, which wasn't okay. Once tacked together and lifted onto the pillow, it works wonderfully and pillow cases also could work.