Buckwheat Back Sleeper Pillow - 100% Organic Filling and Case - Made in the USA, King King Size - 20" x 36" Filled with 100% organic buckwheat hulls and encased in a 100% organic unbleached cotton ticking Conforms perfectly to your head, neck and spine. It will not collapse like other fillings. Stays incredibly cool even for the hottest sleepers. This is because buckwheat hulls allow circulation throughout the pillow. Hypoallergenic and MADE IN THE USA