The Theutica Sleeping Pillow is constructed of a less firm (but still quite firm) non-allergenic, non-toxic foam that will not lose its shape or resilience. Because people sleep on their backs, sides, or both, this pillow was created to work for each sleeping position. The design offers comfortable support and stability in all sleeping postures. This results in a sounder sleep and less tendency to wake with pain, stiffness and many of the symptoms resulting from lack of support. The firm option is available five different sizes, and the lite or less firm option is available in three different sizes for a custom fit. Comes with a fitted zippered pillow cover made of a polyester/cotton blend, and is machine washable. The Average size fits into a standard size pillow case. Purchasing this pillow is not only an investment in a pillow, but an investment in your future health.