My sleep time has evolved to get earlier and earlier. I start out slow and hit full speed by 6 or so, then take a break to go get the blood moving at sunup. If I have any cases heating up, I need to get cracking early to keep up with the young big-firm puppies that get thrown into the mix. Gotta strike while the iron is hot.5:00 a.m.!!! How the hell can you get up that early and be coherent? Unless you worked an all nighter.
When I work on a team, I tell them “if I send you anything before 8:00 a.m., it’s not because I started early, it’s because I didn’t sleep, so don’t call me about it until after noon.” But, all nighters are getting harder to do as I get older (not the staying up working part, it’s that once I sleep, I’m too tired the next couple of days to be productive).