Sadly, I don't spend as much time in the States of Consciousness unit at I'd (or my students) would like due to time. However, I always like to spend time on the disorders of sleep because they're so fascinating and students find them so relevant.
I absolutely love this article from Scientific American Mind on Nightmares and Night Terrors. So many good pieces of information in here and kids can easily read it during class and have a great discussion on its contents.
Some of my other favorite sleep disorders links are:
Phil Zimbardo does a TED talk about time. As ScienceBlog notes: "In this video, [he] says happiness and success are rooted in a trait most of us disregard: the way we orient toward the past, present and future. He suggests we calibrate our outlook on time as a first step to improving our lives."
Word Spy's word of the day: phantom fat. "People who were formerly overweight often still carry that internal image, perception, with them," says Elayne Daniels, a psychologist in Canton, Mass., who specializes in body-image issues. "They literally feel as if they're in a large body still."
"Once people own something - they have an established or imagined "property right" to the object - that something dramatically increases in subjective value." How does this endowment effect work?