As long as I'm seeing Deer, I can sit all day. 4 hours is about all I can do on stand without Deer activity. When I get bored I get down and still/sneak hunt. Tree stand hunting is far too effective to not do at all, but I prefer to get on the ground and hunt Deer on their own terms. Any Deer you can take down on their own level is a trophy, especially with a bow. I never get bored when I'm sneak hunting.