Pillow for Neck Pain Side Sleeper: The side sleeper memory foam pillow features plastic, permeability and moisture absorption of the memory foam material, ergonomic design, and noise reduction features. The unique difficulties faced by those who prefer to sleep on their side have been addressed by a pillow created specifically for the neck pain of side sleepers. This type of pillow tends to have a contoured design that supports the natural curvature of the neck, ensuring that the spine stays in alignment as you sleep. This pillow helps side sleepers wake up with less neck stiffness and discomfort by providing proper support and lowering pressure points, resulting in a more comfortable night's sleep.