Specially shaped by in-house ergonomists, Neck Relief Ergonomic Cervical Pillow is designed to gently cradle the head and stretch the neck, allowing the neck to maintain its natural curve to release pressure and enhance healthy alignment for a relaxing sleeping experience. This pillow is medium-firm and has a firmness level of 7.5 (1-10, 10 being very firm) Dimension:23.5 L x 15 W x 4.3 H inches   For comfortable side sleepng and lower back relief, pair with Side Sleeping Knee Pillow In stock & ready to ship at our CA warehouse, arrives in 3~5 business days.