I,too , use buckwheat pillows.But after about 15 years became very flat. I ordered some buckwheat hulls online. Restuffed my pillow and had enough to make 2 grandsons a pillow each. I think I ordered 10 pounds of it. I don't remember what company I ordered them from. you can google "buckwheat hulls for crafting " and come up with a lot of companies. Hope this helps. I'm afraid if I gave up my pillow ,the headaches would return.