Buckwheat Pillow made in North DakotaBuckwheat hulls, even when packed together inside a Fill Station Zipper Pillow shell, have natural occurring air space between them. As a result, buckwheat pillows do not become heated like pillows made from foam, for example that have no air circulating capacity. Low temperatures are conducive to sleep, so buckwheat pillows allow for a more restful and peaceful nights rest than do pillows that retain heat throughout the night. Buckwheat hull pillows