How am I supposed to sleep??

I'm about 99% packed.  I've done my taxes, bought my travel insurance, downloaded a VPN so I can actually use the internet when I arrive in China, and booked my transportation to Pearson.  I've said my good-byes, and have nothing left to do but grab a small nap, shower, and get dressed. I should really try to sleep, since I won't get to lay my head down until I board the plane in Washington at noon tomorrow. My taxi arrives at 2am, and we're scheduled to arrive at the airport at 4:30.  Maybe I'll grab a small nap then?? I guess the only thing worse than being exhausted tomorrow would be to be wide awake at the start of a 14 hour flight ...