Do you use the Woobie under your bag, under your pad or like a liner?buy a kifaru woobie to throw on top of your badger...doubles as an excuse to buy a woobie for late season glassing.
I'm a weird cold sleeper, I've been toasty warm at a confirmed 3 deg night in my backyard in my badger, and then this Sept I was pretty cold, but not too cold to sleep in the teens a few nights, same pad, same tent, same base layer on.
I'm starting to think how warm I am prior or what I've had for dinner prior to crawling in my bag really makes the biggest difference.
Could also boil a nalgene full of water and it'll heat that badger all night if you put it down at your feet.