Bald Mountain sounds like a scary place to visit a vision of the future! but it won't be nearly as frightening if you spend your nights in the Bald Mountain 18 Degree Synthetic Sleeping Bag from the hirsute cats at Big Agnes. You'll be warm even if all your hair falls out, courtesy of a contoured drawcord hood and mummy shape that increases warmth while decreasing weight. And courtesy, of course, of the synthetic Pinneco Core insulation that's wrapped in a tough nylon shell. Unlike down, Pinneco's warm even if it gets wet, but it's also breathable and uses a Core Screen layer that resists external moisture while actively drawing condensation from inside the bag, keeping you warm as a wolverine and dry as a sand worm all night. A no draft collar and no draft zipper lock out drafts bet you didn't see that coming, while Insotect Tubic baffle construction uses vertically baffled insulation to better conform to your body and provide superior loft and support. You can also mate together left and right zip bags if you feel the need for a doublewide.