Ooops. My bad. Some of those entries in sleepinairports are before 9/11 so it's surely outdated.
Since I live here, I've never thought about the best places to sleep in Sky Harbor.
However, I have arrived in PHX around 1:30am and they wont let you sleep in any of the concourses T4 or T3 really late at night.
You shouild have no problems in the ticketing areas since they'll figure you're a stranded passenger. There are also some nooks near the elevators on levels 1 & 2 of T4.
Im not too sure about T3 or T2, but the ticketing areas should be safe.
[This message has been edited by ByrdluvsAWACO (edited 09-07-2003).]