Dunno..... About once in a month???
I don't wash the actual pillows but I wash the pillow cases all the time. (I use them as laundry baskets. 😅)
Not the pillow itself. I do run them through the dryer ever so often to fluff them up. Pillow cases every week.
I don’t wash the actual pillow but sometimes I’ll spray Febreeze or Lysol fabric refresher on them.
After every dirty pillow talk.