Originally Posted by
Machka
No. Nowhere close!
In my language, 30F is approx. 0C. I've found that a bag rated to 0C is probably good down to +10C ........ or maybe 0C for about an hour, but definitely not the whole night.
+1
My experience with cold ratings on sleeping bags is that it will keep you alive at that temperature, not comfortable. A 30-40F bag is a summer weight bag. Or at least summer in Minnesota.