I never sleep well the night before I travel. The night before I went to Hawaii, I stayed up so late, I ended up packing three times. Recently, though, I've just tried to make myself stay in bed and eventually fall asleep to something like American Dad on Hulu-- funny, but not funny enough to keep me awake (like, say, Arrested Development).
I took a little bit of Benadryl to nudge myself in the right direction, so hopefully that'll kick in soon. Jeremy's giving me a wake up call in four hours!!