Ive got to have enough munchies to help me get through the day. This is my first season with my Iphone so I'm sure I'll be able to entertain myself with that for a while. Like crokit said, I've got to be confident that I'm going to have a chance at what I'm looking for in that spot, and yes I'm just as guilty as anyone else of taking a midday nap. I always wear my harness but if I feel THAT tired, I'll actually climb down and sit at the base of the tree to ZZZZ.