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.
Everyone in my family, from my elderly parents to my kid have switched to buckwheat over the past decade or so. Every single one of them loves it. That’s just anecdotal, but for me it was completely worth it.