Having sold MH, Marmot and NF bags, NF is the last bag I would buy. The only bags we ever got complaints about were the NF bags. Too cold, too tight, too short ect. Marmot and MH go to great effort to make sure thier bags rate at the stated rating. We always subtracted 10-15 deg from any rating of the NF bags when we sold them. Try them on and keep the rating buffer in mind. A NF bag may be perfect for you if the adjusted rating is right.