Breathable, skin-friendly knit cover (polyester + spandex blend) of the Neck Support Pillow ensures a cool, comfortable sleep experience without overheating. Buckwheat Neck Pillow features a natural hull construction that contours to neck curves, providing steady support to ease daily neck and shoulder discomfort. Ergonomic Cervical Pillow for Neck Pain Relief gentle traction, acting like a soft neck support during sleep and complementing posture care routines. Adjustable fill via hidden zipper lets users customize the Cervical Neck Roll's firmness to suit individual comfort needs for sleeping or relaxation. Natural Buckwheat Pillow's mild aroma and soft rustle sound a calming, organic feel; ventilate first if preferring a lighter.