Fangrui Product Details Revolutionize Your Sleep With The Innovative Hollow Concave Design - Tired Of Waking Up With Neck Pain And Discomfort Look No Further! By Combining The Benefits Of A Traditional Bed Pillow And A Contour Pillow, Our Ergonomic Hollow Contour Pillow Is Here To Transform Your Sleep Experience. The Hollow Concave Surface, Tilted At A 15-degree Angle, Skillfully Cradles Your Head, While Maintaining The Natural Curve Of Your Neck And Aligning Your Spine Flawlessly. Wake Up Feeling Refreshed! Experience Uninterrupted, Blissful Sleep With Our Versatile Pillow - Engineered With Meticulous Precision, This Innovative Neck Pillow Features Six Unique Contour Zones Specifically Designed To Embrace The Natural Curvature Of Your Body. Each Contour Zone Works Harmoniously To Address Targeted Pressure Points, It Provides Full Support To Your Neck, Shoulders, And Arms, Effectively Alleviating Your Neck Pain And Muscle Stiffness. No Longer Will You Have To Compromise On The Quality Of Your Rest. Customizable Sleep Height! Experience True Liberation- According To The Latest Research, Maintaining A 15° Golden Ratio Of Arc Neck Traction During Sleep Is Pivotal In Restoring The Body's Natural Curves And Enhancing Deep Sleep By An Astounding 45 Minutes! It Offers Enhanced Freedom In This Regard, Allowing You To Achieve Greater Contouring By Rotating The Cooling Pillow 180 Degrees Or Removing The Bottom Insert. You'll Find The Sleep Height On Our Bed Pillow! Moreover, It Doubles As An Excellent Gift For Your Parents, Friends, Long-term Usage Will Greatly Improve The Quality Of Sleep.