Wrap a bar of Safeguard or Ivory in a cloth so it doesn't get on your quilt. Place it in the bottom of a large plastic bag. Place your quilt down in the plastic bag and leave for 3-4 weeks. This usually take all the cigarette smoke out of the quilt. I have smoking quilters that bring me their quilts to long arm quilt. They get this treatment as I can't stand the smell of smoke.
OzarksGma