Huma is traveling with Hillary. Where did Huma sleep??
Cue music... Me and you and a gal named Hu driving around the country in a van....
You don't think anyone's actually sleeping in that thing do you? Perhaps whatever agent gets a night shift watching the van as it sits in hotel parking lots, perhaps.
In fact, I doubt Hillary's even spending much time in it at all. She's probably going from place via helicopter/jet and meeting the van a few miles out from each stop so she can get into character.