The founders of the Spherehead Pillow offer a historic perspective.They also pose a remedy for back and side sleepers. The round and scooped out, patented Spherehead Pillow offers a unique physical shape and physical benefits. The innovative and patented Spherehead Pillow cradles and supports the head and neck, promotes alignment of the spine, and allows flexibility of sleeping positions.
https://www.prpocket.com/2024/08/the-history-of-pillow-from-ancient-innovations-to-mordern-day-breakthrough.html