Great Bag of Sleep

This bag definitely keeps me warm, and it takes less than 5 minutes for me to get completely warm once inside. I have not had a chance to camp or back pack with it yet, but I can tell that I will be nice and toasty, I have already slept in it a few times. I am 5'7'' and there is plenty of room for me. The only downside (which isnt really that bad) is that it packs rather large, but how small can you get a 20 degree bag, I will deal with it. I will put it on the outside of my pack anyway.