Originally Posted by
ScareBear
T-shirt, long sleeve thermal t-shirt then the Ghost Whisperer, then get in the bag. Don't forget socks/booties, thermal tights, balaclava and gloves. If it get more tragic than that scenario, throw on your rain jacket and pants and deploy a bandana or something to fully cover your nose and mouth(the slight pre-heating of air drawn through membrane, like fabric, can make a world of difference in staving off hypothermia). If it gets more tragic than that, and you don't have a space blanket to create a VBL inside the bag....break camp and start hiking to stay warm...eat on the run...
Also, if it gets this bad, be sure to take measures to prevent your water from freezing...