The North Face Aleutian Sleeping Bag 0 Degree Synthetic

Ever rigged your bed on little skis and pulled it behind you into the backcountry so you didn't have to use a crappy sleeping bag' That's admirably dedicated, and a whole lot crazy, but check this out: The North Face Aleutian 0 Degree Synthetic Sleeping Bag unzips completely flat, so you can have the warmth of an 15 degree EN rated bag when things are freezing, and the coziness of a comforter if the night's a little bit warmer than that. It's also full of synthetic Heatseeker Eco insulation, which is made of 30% recycled material, and keeps you warm even if it gets wet, which is something down won't do. The Aleutian isn't a super light backpacking bag, but it still has a draft defeating collar and roomy mummy design to reduce weight while maximizing warmth, so you'll sleep better in the mountains than you ever did in your own bed.