I have a friend who raises sheep and sells some of their wool to a quilter who uses the wool as batting. The quilter cleans and cards the wool, then places it over her backing. Some of her quilts are thin and some are very thick. I am told that she really, really likes the versatility of making her own batting out of her own processed wool.I have heard that the price of raw wool is down now, so she is saving money by doing this.