Sobakawa Buckwheat Pillows- All Natural 100% Buckwheat Hulls. Each Sobakawa Pillow contains the following benefits: -Natural Buckwheat Repels Heat, Allowing Air to Flow Between Husks Keeping Your Head Cool -Adjustable Support and Comforts Pain of the Neck, Back, and Head -Buckwheat hulls are believed to offer therapeutic benefits far superior to traditional foam and Feather pillow. In terms of oriental medicine, the sobakawa buckwheat pillow offers an important element of human health - having a cool head -Perfect Travel Pillow that Fits Your Suitcase -Alleviates insomnia, headaches, irritability, stiff necks, and sluggishness