Now this isn't an actual dream. Sadly, I can not remember any dreams I had last night. Maybe I'll have better luck tonight.
But this is something that has happened more than once. Every day I spend at least 2 hours a day in the subway commuting. Sometimes, as I am trying to fall asleep, I start to feel motions as if I'm lying down on the subway. Like a rocking back and forth and bumps and what not. Does this happen to anyone else? Does anyone know why it might happen?