Revolutionize your sleep with the innovative hollow concave design. 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. 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. 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. 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 will always find the perfect sleep height on our bed pillow. Condition: New. Origin: China.