Filled with premium buckwheat husks sourced from Daliangshan high mountains over 2500m altitude, all grains go through high-temperature sterilization for hygiene. The flexible filling fits your neck curve perfectly to support the cervical spine, easing neck stiffness. Breathable natural material dissipates heat well, avoiding stuffiness at night. Ergonomic design stabilizes your sleeping posture effectively, relieving fatigue and helping you fall into sound sleep effortlessly every night.