[csuper]

If you’re able, you should do what comes naturally. Are you a night-owl or a morning person? If you’re asking about how to wake up earlier, I’d guess the former.

I’m simply more productive and creative in the AM, so I rise each day at 5:30. For me, knowing when I'm the most please with my own production is my motivation. But, by the time 2 or 3 rolls around in the afternoon I’m all out of juice. And truth be told if I wasn’t in a corporate environment I would likely take a nap at this time to recharge.

[jwilliams]

If you’re able, you should do what comes naturally

Not sure I agree with this - For me, sleeping is just a habit. I get into the habit of staying up late, or the habit of getting up early.

This makes it sound trivial - but it's not - habits take work to form and work to change.

Naturally everyone is different. I'm sure there is research that disagrees with me :-) But that's my experience anyway.

[ciupicri]

You might find this interesting: http://en.wikipedia.org/wiki/Delayed_sleep_phase_syndrome

[jwilliams]

Absolutely. e.g. I know there is a lot of research around teenagers having distinct sleep patterns/requirements.

I guess my point was - don't necessarily pigeon-hole yourself as a "night owl" or "morning person".