I agree with the suggestions about using wool batting for a snuggly warm quilt. Either the quilter's dream wool or the Hobb's wool batt would work well - I think the Hobb's has a little more loft, but they would both be good choices. One thing I haven't seen addressed here is about using batting for your wall-hanging. I would go ahead and use a lightweight BONDED batting. You want a batt that gives you some stability and body so a wall-hanging doesn't sag. Most battings have a "cross-wise" stretch, so be sure you check that you use the "unstretchy" length-wise for the length of your wall-hanging. (One quilt artist famous for large wall-hangings that she sells to corporations to be used on their walls uses off-white colored "navy" blankets as her "batting" since they do not sag at all.)