I was talking to one of the ladies who won @ the Houston quilt fest. and she said she uses wool in a lot of her quilts only not on the ones that they use daily. She said that you have to be careful with the repeated washing and drying of wool batting. I was going to use it on a quilt I am making my hubby but now will use bamboo. I am no expert but she seamed to know what she was talking about and it made sence to me.