Herbalism helps me out a lot. Tea to wake up faster in the morning, Chamomile, Catnip, Eleuthera, Kava, Valerian and melatonin to fall asleep (keep in mind it's a bad idea combining these). None of those are particularly risky, and all are plant derived, except you'd want to avoid taking melatonin, Kava or Valerian too often or with alcohol.
If you'll excuse me it's time for a post-midnight snack! 
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"Standing on a well-chilled cinder, we see the fading of the suns, and try to recall the vanished brilliance of the origin of the worlds."
-Georges Lemaitre
"I fly through hyperspace, in my green computer interface"
-Gem Tos
