i sleep often in my old man vision.many times i am in my stand 8-9 hours when i stay all day with a day pack.i make sure that my safety harness has little slack between me and my tree.plus,the design of my stand is almost like a craddle.i don' t recommend this to anyone,but sometimes the conditions just keep it from being prevented when the noon sun takes over after a couple of sandwiches.i have awakened myself many times due to snoring.and NO i have not fallen from my stand and YES i have taken many deer by staying all day .