It looks like a likely start for me is late February or early March due to schedule. Currently I use a thin (1 cm?) CC foam pad with foil on one side, and a 15 F top quilt from Wilderness Logics. I get cold with this though around 40 F, even with many clothes on (including my down coat). Have taken it down to maybe 25 but was COLD. I do make sure I change to dry, wool clothes at end of day.
Any suggestions to help my setup? Would prefer not to shell out for new bag though open if I have to, I'd guess I can get something decent moneywise for my quilt. I am 5'8" and also a woman which I'm guessing is part of the reason I need to bundle up.