I agree with the poster who said not to wash the top separately. Finish the quilt. Binding; quilting. Then wash as you would expect the new mom to wash - with color catchers. Inspect before drying. If there is no bleeding go ahead and dry. If there is bleeding, continue the wash w/color catchers until there is no more dye in the catchers. THEN go ahead and dry. At that point, any bleeding should be done and the new mom should be safe with whatever washing process she might follow.