I just finished three baby quilts with fleece as backing and I used a thin polyester batting (you know, the kind everyone says not to use)and they came out great. The two I did on my home machine, I quilted with the fleece on top to keep it from bunching up. I used a combination of loops and echo quilting. A slightly larger one (about 45 in. square)I did on a long-arm machine as a practice piece. On that one, the fleece was on the bottom and it came out fine. The quilting was loopy with heart/leaves and the quilt is not stiff at all.