If you bear a child in a dream, do they stay in the dream space when you wake up?
What if there are people wandering around some dream world while we pop in and out randomly?
Maybe people in comas decide they want to live their lives in dreams, and choose not to wake up.
I was thinking all of these things in a half asleep meta-dream before I woke up twice. Maybe we all still have a few awakenings to go, before we get to 'reality'.