i just made 3 for xmas. used batting in only one b/c was using old cut up pj's of my daughters that she wanted to save but not wear and b/c she wore them so much they were rather thin. the other two were new flannel and both those kids get warm easily so didn't want to make it too heavy to use if it was for me i think i would need 2 layers of batting - cause i get sooooo cold!