Your bag was probably not a 20° bag, I suggest you go back and double check the label. That said, a 20° bag is probably only good down to 40°. But if it is indeed a 20° bag suggest you take a look at your sleep pad rating and think about throwing in A couple of handwarmers.

If you do a search here you’ll find a couple of threads with a list of things you could do to stay warm, it’s a great subject.

good luck!

REI Member Since 1979