Yes, there are a few people she thinks she knows down there. There's someone by the bar who could be Andrew (or the Doctor, or Peter). A weird group dream, then, as opposed to a weird shared dream.

"It's happened a few times," she admits after a few moments' thought. "But it's not normal. I think I only ever dropped in on other people while I was asleep for a few days." Belatedly realizing that's the sort of statement that usually requires an explanation, she adds, "Drained myself," as if her overexertion and subsequent two-day nap was a minor inconvenience.