I've spent most of the last three months closing the store and getting to bed sometime between two and five in the morning. The work's OK, but it's wearing. I was up at 6:30 for the first time I can remember in a long while today; took a little walk just after sunrise, had a bit of coffee (I think I managed to quit that again, but we'll see) and some breakfast, and am enjoying puttering around in the early morning. Sure, I have to work in seven hours, but there should be time for some more accomplishment before my inevitable nap.
It's fun to play around with scheduling, given that a few months of sameness makes you think that's the only schedule you've ever had.