I'm sorry if this sounds as though I'm being critical about the previous post by Onebyone, it's not intended that way. Unless one has a very large, empty freezer, that suggestion could prove to be impossible. I have a very large refrigerator with a side-by-side freezer. My freezer is full. And, a bolt of batting, even a very few yards (like 3) makes a very large item -- I wouldn't have room in my freezer for it. Since this is, if I remember the original post correctly, 80/20, it's very likely boll weevils, which infest the cotton plant in the fields -- but I really can't be sure. While cotton is grown in warmer climates, there's still some freezing weather that evidently failed to "kill" the insects -- so I'm not sure that freezing the batting would be beneficial. Likewise, freezing the batting "could" solve the problem. I think I'd play safely and call an exterminator!