With your sleep schedule constantly shifting, how do you manage day-to-day activities? You must have a job with very flexible hours for that to work. But even things like going to the store and seeing a doctor must be slightly more difficult if you might be asleep from morning to afternoon.

With 9 months of data, how consistently do you shift your schedule by 1 hour each day? I'd imagine there are fluctuations, but I guess if it's reliable you could schedule things on certain days.