All I really know about quilting with wool is that growing up I know we had quilts made of wool for our winter beds. It seems in my memory that there were blocks, but also strips and smaller squares.It wasn't a crazy patch. I made a throw from wool clothing scraps, but I washed and dried everything first. I just made it with 4 inch squares, and had a flannel backing( also pre-washed and dried) We used it quite a lot, and it did get washed several times.