My INTJ and I just watched Interstellar together. Afterwards we had a discussion about the hibernation/sleep state and whether or not they would be able to dream. E made the argument that in order to survive for so long and not age that the hibernation state probably was a complete state and there would be no dreaming. I felt that because there was still brain function that there would be the possibly of dreaming. It was an interesting discussion, and I wanted to see if anyone whose seen the movie had any thoughts about it.