Whether you sleep on your side or your back, it's important to maintain proper sleeping posture. The innovative Align The Spine Contour Pillow keeps your vertebrae aligned for a great night of sleep in any position. The secret is a high-density inner blue core that supports your neck, shoulders and back. It’s soft and cool on the outside, with a plush outer layer of fiberfill for relaxing comfort and breathability. Includes a soft, quilted cover that unzips for washing.