>>1091730When you've filled up your water bottles with hot water from the fire, put all your clothes on, put your backpack and extra layers under your sleep pad and on top of your thermal layers, drank some warm tea, covered everything but your eyes and mouth (and even then, cover it with a buff or something) and made sure you're not pitched in a wind tunnel. Then, buy a proper quilt/sleeping bag from a Nordic milsurp