When I think of the comforter on my bed, I see a big, very thick thing with the batting as big blobs inbetween very sparse quilting lines....yes, it is destined to be replaced....so trying to machine sew anything onto a comforter would be difficult at best. Now if your comforter is in better shape, it might not be such a chore.....as much as I myself despise handsewing anything, I would think it best for your dresden plates.