If you want to lose your grasp on reality, and destroy your complete sanity, just listen to the clock. But this will not be easy, let me tell you right now. This is not something to mess around with. It's just an easy way to lose your mind within the confines of your own home. But there are a couple of guidelines to follow. First, pick a room with no windows. It can be a room for anything, but it just can't have windows. Second, you can start at any time in the day, even if you wish to start at night, for the process will take exactly 24 hours to complete.