I don't live in the extreme climates of Herman, Jacqui, and most of the rest of the members, but my inclusion of a 2mil contractor trash liner is to act as a bivvy ...with poncho and mosquito netting ... seems like a good way to get off the wet ground (most likely leaning against a tree) a chance to remove your shoes and allow your feet to dry... from AFLM's video, the addition of a high quality candle is a good idea