Oh man, I can relate to that a lot... have you experimented with melatonin? A really low dose (0.3mg) of it at around 11-12pm helps me tremendously with keeping my rhythm somewhat in check. I still make liberal use of option to work whenever I want, but at least I'm not in "get up at 2pm" mode anymore.
But it seems you've found a pretty good way of managing your sleep already, arriving to work at 6:30 sounds like an alien world to me. How have you managed that? Just the strict bed time? Doesn't that mean you lie awake for an eternity?
But it seems you've found a pretty good way of managing your sleep already, arriving to work at 6:30 sounds like an alien world to me. How have you managed that? Just the strict bed time? Doesn't that mean you lie awake for an eternity?