Thanks for the replies. I thought I filled out my location info.
I'm in Texas! Just North of Austin.... so, no I'm not getting snow much nor sleep in it...yet. But, since I was cold...and I like being prepared, I figured I would get something warm. I have read on other forums to take about 20 off a rating, and I was thinking that if it was too warm, I could also open it up and vent. So a 0 degree is good, maybe a -15 would work also. Next week I am driving up to Kansas and Colorado, I wouldn't mind having a warm bag just in case...
I too read about slumberjack and read some revie