Sooo tired

Haven't really slept much in the last five days or so - between flying to Oakland, the soon-to-be-legendary trip to Reno, Cora screaming through the night, and the redeye back to NYC, I'm working on an average of 4 hours or so per night. This is one of the things that makes me wonder if I'm cut out to be a parent - I can barely take care of myself with this little sleep, how could I possible take care of someone else?
For me, when I'm working on serious sleep deprivation it's very similar to being sick - my throat hurts, I feel crappy, and my head feels like it's full of syrup. Hopefully I'm just really tired, because I really don't have time to be sick.
To AA's credit, the flight from SFO to JFK was 100% sold out (oversold, in fact), so there was no way a pleb like me was getting an upgrade. All things considered, though, it wasn't that bad; we left on time, arrived on time, and I was so tired that I slept for almost 3 hours of the 5 1/2-hour flight, so to me it felt like a pretty short one. Combined with my PSP and Musicophilia, it was actually relatively painless. Getting through today, on the other hand, is another thing entirely...