I have got two pairs of second hand Sanderson curtains with are 49% Linen 38% Cotton 13% Nylon. (Sanderson swallows in pebble) I was just quoted £125 at the dry cleaners to get them cleaned but they said it was at my own risk, so no guarantees that they won't run. It seems a huge amount of money for no guarantee. I'm wondering whether I could risk a gentle hand or cold wash. Any thoughts?