I'm interested to see what you find out about the sleep thing. It's pretty irritating. I just shut my computer down at night most of the time because of it.
There's also a symptom of narcolepsy called hypnagogic hallucinations. I had a girlfriend whom was narcoleptic when I was in college and delt with this a lot. Not to say that you have it, but hers didn't manifest until about the time she started college.
My kids are still under 2,yr, however that doesn't stop me from using them to brows toy stores. However, I brought my son into a Best Buy and he was noticeably more excited than the Toys r Us; which is just as awesome/expensive.