The Tempur-Neck pillow is the firmest out of all as it's crafted to provide sturdy support to those who experience neck pain and is uniquely shaped to follow the natural curve of your neck.

We landed on theTempur-Pedic Tempur-Neck Pillow as the best pick overall, which stood out with its ergonomic shape and patented pressure-relieving foam. If you’re a side sleeper, we recommend ...

and Tempur-Pedic mentions the dual-sided design is great for all sleeping positions. One side of the Symphony pillow is contoured for a flatter shape best suited for side or stomach sleepers.