Hi Everyone. I have some questions re: the pack list: What are the participants going to sleep in? Also, what is the duct tape for (ours is very wide and wondering if we should cut it)? Please refresh my memory on whether a steripen or lifestraw would be useful; if so, which one would be more useful; can Epi-Pens be carried on airplanes? How thick of fleece do you suggest (how cold could it get)?