There is a great House episode on this though I don't remember the title.
For the forensic bit:
If you encounter the whole "lucid dreaming", you know that it can get quite confusing with real life when there is also sleep paralasis, leading to hallucination. In the epsiode of house, the guy didn't have the sleep paralysis bit but actually had sleep walking afflictions and acted out his dreams. People thought he was crazy, but he was undiagnosed.
Anyways, on the other bit,
I know my father has insomnia (diagnosed) and that I have Narcolepsy. As far as questions go, to my understanding narcolepsy is an autoimmune disease where the immune system attacks the nuero-cells containing hypocretin. Now, genetically, I just learned that it is the genetic SNP in the NLC1A gene. Therefore, I would be wonder does it have to be some combination of a compromised immune system AND genetic precursor? The narcolepsy has been present for a long time (~7 years), but came at me full force in a period of about two years after a weird week in my life of zero sleep (which I still fail to understand how or why, since it had never happened before), in addition to eczema, and a myriad of other medical problems.
Are different autoimmune diseases intricately LINKED? Should we be differentiating them or do they all have a similar root?
I could come up with about a bagillion questions. It both fascinates me and perplexes me.