After laying for two hours without sleeping, mostly because of mosquitoes and insufficient protection therefrom, I decided to reevaluate my situation. If I don't get any sleep, that won't help me ride!
Eventually I recognize that the only thing keeping me camped is some sense of pride. Silly!
Fortunately for me there's a hotel only half a mile away. At midnight I check in, methodically wash my clothes and scrub the poison ivy off my body, and zonk out.