When you need something compact and light for extra warmth when you need it, the The North Face Aleutian 40F Sleeping Bag with is compressible Heatseeker™ Eco synthetic insulation made partially of recycled materials is an easy, roomy choice for whatever adventure calls to you. A vaulted footbox helps keeps your feet warmer, while a draft collar helps seal in the warm air to get as much coziness as possible while you dream about where to go next.