For me its Halcion...I always get a wierd hangover with Ambien. Halcion works faster keeps you asleep longer and you don't get a hangover.

Before the overnights my routine is pretty set.

Eat a healthy but not huge lunch...that's my last meal.
I always fly J so I take the first glass of bubbly I can find and as soon as we are wheels up I take my pill (don't do it before b/c if the flt gets delayed or something you can have a hard time keeping your eyes open.

Then another glass of wine and I wake up over shannon for breakfast.
Don't eat dinner it just makes me feel sick.