Oh wow, thanks for the info. The reason i wondered, is when you cut poly batting, it kind of makes a wierd crunchy noise lol, so i wondered if that was bad maybe. I bought an old tattered quilt at the thrift store for a dollar, and it has really thick batting, so i want to cut it all up into tiny pieces to make a couple of pillows, so that's why i was wondering, cus im planning on cutting a lot of batting lol