Not in my experience. I do not function as a sentient human being before 10am. As an undergrad, there were a couple of classes I wanted to take so badly I caved and signed up for the only section running, at 8 or 9am. I have never gotten higher than a D in any of them. I can keep it up for two, two and a half weeks, but after that I start sleeping through alarms. I do not seem to have a choice. Alarm clock, cell phone, DS, computer blasting music, sleep timer on the TV – I have come very close to sleeping through dormitory fire alarms, too. It doesn’t matter whether I’ve gotten 2 hours or 12 hours of sleep before the noise starts.
When I was a teenager, the only way to actually get me to my 7:20am-start high school on time was to have an entirely separate human being, usually my mother, come check on me every ten minutes and wake me back up. I then dozed off in my first two classes on a daily basis.
If there is an important one-off event starting early in the morning, I can probably arrange for my physical presence. After two NoDoz – that’s 400mg of caffeine, usually washed down with Pepsi – I can follow simple instructions and perform rote tasks. I will then come to somewhere between 10 and 10:30am, hunt you down, and ask you what is going on.
I’ve tried sleeping pills at night, wake-up pills in the morning, sleeping pills at night AND wake-up pills in the morning, slowly adjusting by going to sleep later and later every day, slowly adjusting by going to sleep earlier and earlier every day, suddenly and violently adjusting by staying up for two or three days running, and trying to force myself awake by scheduling something I desperately want to do early in the morning. None of it works. When I had unstructured time over school vacations as a kid, it only took two or three days to rotate around to going to bed between 8 and 9am, and waking up when my father got home from work at about 4:30 in the evening.
I’m sure I have some complicated medical thing that’ll be featured on a Discovery Channel special someday, but I also have no medical insurance, so the odds that I will be giving someone a few grand to run a sleep study and give me an official diagnosis are slim. In the meantime, I have just gotten very stubborn about working only swing or overnight shifts if at all possible.