Hmm, if it's really bothering you, can you pick a night where time will allot you to go to bed fairly early and get a decent amount of sleep? If so, maybe you could take benadryl one night. My sis is a doctor and she told me if you want to take it as a sleep aid every once in a while it's okay. You'll get rested, but wake up earlier than you're used to b/c you went to sleep earlier, than go to sleep earlier again, and boom you're back on schedule.
And for the stress...umm...listen to Model Prisoner?
"If there was a Mount Rushmore for Broadway scores, "West Side Story" would be front and center. It snaps, it crackles it pops! It surges with a roar, its energy and sheer life undiminished by the years" - NYPost reviewer Elisabeth Vincentelli