Trudy snorted. "That's not sleep, that's unconsciousness. It happens when you've been awake for God knows how long staring at God knows what through a microscope until you feel like your brain's about to leak out your ears."

She steered him down a different corridor to the nearest transport tube. "I've crashed out in the pilot's chair for my helicopter quite a few times, so I know what I'm talking about. Real sleep is going to do you worlds of good."