If my body clock had its way, I would always stay up until 3am and sleep the morning away. But after years of jobs on “normal” schedules, and getting kids to school on time, I am no longer capable of sleeping until noon.  Given half a chance, I would be quite comfortable staying up until all hours except I know I am guaranteed to be miserable the next day — because no matter how late I go to bed, I’ll awaken at 7.  Seven ayem.  How can my natural schedule be half ruined and half the same?