I always have a hard time staying on stand all day long unless I see some activity. I have used the internet on my phone to waste some time, but this past spring turkey season I missed a golden opportunity at a nice Tom because I had my phone in my hand instead of my shotgun. I seem to always take a little break by either coming down the tree and stretching a little bit or walking back to the truck or 4 wheeler to get some blood flowing again. Although I have been known from time to time to take a nap while up the tree. I tend to play a little mental game while I am sitting there. I have a habit of counting the squirrels or the birds, or something like that. It seems to keep me on stand longer if I keep my mind sharp rather than thinking about napping or other things I feel as though I am neglecting such as work around the house!