I had a quilt given to me that reeked of smoke but didn't know it until I got it home- no wonder it was not just tied but twisted knot in the plastic bag. I got the drying rack and hung it outside for three days and nights-weather did cooperate. When the smell had almost left, I filled my laundry tub half way with very warm water, half a cap of Free & Clear laundry detergent, and a cup of Borax- swishing with the handle of my toilet brush. Put the quilt in and let it soak all night (for about 15 hours).Right away you could see the smoke discoloring the water. Next morning I drained the laundry tub and put quilt into the washer. Added a full cap of Free & Clear laundry detergent and a half cup of Borax washing on cold this time at the longest cycle. No dryer sheets or perfumed detergent- I wanted that smell out of the quilt. Used the same method for moth balls, too and it worked. Good luck.