I can also fit 1-2 people in my place if you don't mind us all sharing a room - i don't. (Maybe Friday arrivals go to PNC's and Saturday stragglers to my place?)
I'm in Adams Morgan - about 2 mi from PNC's place at 16th and Kalorama (3 blocks north of 16th & V if you'd prefer to stay on the numbers/letters grid).
We'll be up at midnight, no problem. Just give us a call.
ALSO: HIGHLY RECOMMENDED: Check out the Dragon Coach or the Vamoose Bus. Both have websites. These "chinatown buses" pick up around Herald Sq or Madison Sq Garden and drop in Downtown DC. A bit more conveinent, same cost.