Neck pillow helps with sleep and protects the neck, cervical bones, home, soy fibers, spa, massage pillow for sleep, new

Description: 1. The very high pillow can cause excessive forward movement of the cervical spine, hindering its natural physiological curve, leading to neck pain, stiffness, limited movement, and even back pain. 2. The very low pillow can cause the head to tilt backward excessively, affecting normal breathing and hindering blood flow back to the head. 3. This product comes in two sizes, 45*70*11 cm (please refer to the corresponding image you need to purchase to see the detailed dimensions). Please choose your purchase according to your usage habits. 4. Since the pillow is shipped under vacuum pressure and received in a vacuum-packed state, you may feel it flattening when opening the pressure bag. This is a natural phenomenon, just follow the instructions in the image below, then gently press or dry the pillow with air to restore its natural fluffiness.