Little did you know, there actually is a sleeping bag that you can wear. The Lippi Selk Sleeping Bag ($175) is a sleeping bag/suit that is designed to keep you warm while allowing you the mobility that in the worst of conditions can keep you alive. Because crossing cold rivers or climbing up the side of a mountain can be rough. We tried to climb up the side of Space Mountain, and we didn't even make it half way before we had to defend ourselves with laser guns. True story. Those damn Disney security guards have stuff you haven't even heard of.