New Product Description [Supports Neck and Cervical Spine] This pillow is ergonomically designed with a curved line that firmly supports the base of the neck, fitting snugly from the shoulders to the neck. It maintains the natural curve of the cervical spine while you sleep, allowing for a comfortable sleep. [Choose from 2 Heights] This pillow offers two heights, 6cm and 10.5cm, accommodating those who prefer a lower pillow and those who prefer a higher one. Simply change the orientation of the pillow to select the height that best suits you. [Washable Pillowcase for Cleanliness] The pillow cover has a good feel and excellent breathability, absorbing and releasing sweat during sleep, maintaining a comfortable sleep environment. The outer cover of the pillow has a zipper and can be easily removed and washed to keep it clean at all times. [Achieves Ideal Sleeping Posture] The pillow is designed with higher sides and a three-dimensional curved shape with a depression in the center, supporting a stable sleeping posture when sleeping on your back. When sleeping on your side, the higher sides lift your head naturally, keeping the cervical spine in an ideal state at all times and maintaining a comfortable sleeping posture. [Size] Width 50 x Depth 30 x Height 6/10.5cm [Material] Outer Cover: Polyester, Bamboo Fiber, Urethane Fiber; Inner Cover: Polyester; Filling: Polyurethane