Freefall in color by many folks.
Sam: We have a dream machine on board if you want to take a nap.
Rover17: I can not nap. I have a set number of minutes for proper integration of day memory and long term memory.
Sam: How long do you need?
Rover17: Current requirement is three hundred and seventy two minutes.
Rover17: Learning new things increases the time needed. Talking to you has increased my sleep requirement.
Sam: Interesting. Normally I cause people to lose sleep.