Originally Posted by
Austinite
I live in the South and I still use batting in all my quilts but we run our air conditioner 9-10 months out of the year and we like it rather cool in the house. A thin wool would be an easy choice but I'd try a sheet, it would be cheaper.
That's a good point Austinite - AC usage. In our case, we open our bedroom windows as often as possible. So if the humidity goes down and/or the temp drops a little, we turn the AC off. Therefore my nighttime sleeping temperature is probably a little warmer than yours.
literalsalad - I think you should determine how hot/cold your bedroom is in the summer and plan accordingly. Consider what blanket weight you currently like in the summer and try to make your quilt approximately the same. Before I made the quilt we would use a sheet and a thin cotton blanket. My quilt (just a top and bottom, no batting) is about the same weight as the thin cotton blanket was.