The picture I linked is of a buckwheat pillow. Had no idea they were a thing before today.
What about silk or bamboo pillow cases?
I’ve only ever really used cotton pillow cases and cotton stuffed pillows. I recently upgraded to a foam pillow that I’m enjoying.
Most of mine came from a vendor called Pure Beech that was exclusive to Bed, Bath and Beyond. They are the 100% modal sateen that seems to have been a consumer favorite that doesn’t seem to be available anywhere. I have another set from Bedsure in their 100% bamboo that has a similar feel though.