Originally Posted by quilting is fun
I have used polyster batting for years and love it. It is light weight, warm, and puffy. I've never had any problem with bunching. But, not having a long arm machine, I tie my quilts usually at 5" intervals. So farther intervals might be a problem, Just don't know.
I made my 10 year old grandson a bunch of play quilts all with poly batting and all tacked at least every 5". They've been washed, dried, dragged around, on the floor, on the ground, -----------------never one bunch!