I came up with the same idea a while ago, except I would fit dinner in either after work/before bed or after waking up/before the day job. I never got to try it out though, because when you live with others who are on a regular sleep schedule, there will be plenty of conflicts.
I'm still itching to try this if/when I ever get my own place. It's basically a normal day with the sleep and personal time portions swapped. It's easy to come up with the idea since it's the only flexibility possible when your work time is non-adjustable.