I'm sticking around tonight because it turns out that at 3:00 a.m., we're getting some sort of Employee Appreciation thing. This usually means something tasty to eat. As long as I'm still officially an employee, I might as well get treats out of the deal.
I'll have a three-day weekend to work on shifting to a daytime schedule. I don't anticipate having a big problem with that. The sunlight will help and there are always various stimulants to keep one awake during the day. Since my first week will be a short one (only four 8-hour days) I think that will help as well.