The sobakawa buckwheat pillows, regarded as the traditional Japanese pillow, have been used for centuries in Asia as a soothing cervical pillow, and are very well-liked these days among people who prefer naturally derived sleep aids. These organic cover buckwheat pillows conform to your unique head and neck contours providing support thus possibly relieving headaches, migraines, and muscle tension. There are numerous advantages of using an organic cover buckwheat hull pillow instead of conventional synthetic or foam fillings. The pillows you get in department stores try to make you adjust to their shape rather than yours, and this puts stress on your neck muscles.