Polyester batting has come a long way over the years. Bonding of the poly fibers has nearly eliminated the issue of bearding. I have used all kinds of poly battings over the last decade or more , the bonded fibers have never bearded. Some poly battings have a thin poly tissue like layer over the both sides of the batting. I use tow layers of batting on almost all of my quilts one layer cotton and one inexpensive Mountain Mist ... none have ever bearded.