My friend asked me this tonight and I am at a loss. She was given a beautiful hand made quilt, cotton top and bottom that is filled with 2 layers of combed sheeps wool. It is quilted in large flowing lines, with lots of empty space (her words). I have not seen the quilt, but she is wondering how she should clean it, she was thinking of laying it out on the grass and pouring warm soapy water onto it. I said, wait, let me ask some very talented quilting people I know of. So,, very talented quilting people, how would you clean something like this??