I did use a wool batt in a quilt I made for my son and d-i-law. I hand quilt. After it was completed I washed it in the bathtub in cold water using quilt soap. I dried it on a sheet laying flat in the backyard. It came out beautiful. So when I gave it to them I gave them instructions not to wash in hot water or in the machine. Well they didn't wash it, they sent it to the cleaner instead, with instructions NOT to wash it. Well the cleaner didn't listen and they washed it and it ended up almost half the size and all puckered. The cleaners gave them $100 for the damage. It sat for a couple of years, then out of the blue I thought to myself there is nothing wrong with the quilt except the batt. So I took it back and unstitched all the stitching and remade the quilt. They have it back and love it and they can wash it. So just be careful when you use a wood batt. I love to quilt wool, it's like butter. Good Luck.