I had slept on buckwheat hulled pillows in Japan, liked them but they are traditionally smaller than US bed pillows so thought I’d try the Hullos. I love the pillows, despite little buckwheat seeds(?) falling through the fabric even when the case it tightly zipped. I had a neck injury from a car accident years ago and regular pillows don’t give me the support I need. The buckwheats do. The only real criticism is that they weigh a ton! Don’t use them for pillow fights, they would do serious damage (can’t image anyone actually doing this). Don’t think Hullo could fix this but it would be a definite benefit.
I would recommend Hullo to a friend.