Thanks to all of you for your replies. I have checked out Hobbs and that is where I find the most mixed responses in regard to machine wash and dry. I have found that on Quilters Dream website, they say that the wool batting is machine washable and dryable. I have written to both companies to get their response to my question. I know that if I have to be super careful when washing or drying the quilt then I will be sorry that I ever made it. At this point, it looks like I will be purchasing the Quilters Dream Wool.
I just knew that there had to be people on this forum who had used wool batting before.