I like to sleep on my side and require a higher pillow. I've tired down, feather, polyfill, buckwheat etc. and didn't like any of them. I ordered wool filled pillows two years ago and still love them. A little bit of the fluff went out a few months after getting them and I thought I was going to be disappointed but they have stayed great. The company said they can card the same wool and remake them again in about 7-10 years whenever I'd like to get them fluffy again. Whenever we go overnight anywhere I am reminded how luxurious my pillows are.