Hey Mike, I'm right there with you for sure. Similar hours and schedule with similar crash days (as well as feeling worse on the days you actually sleep like a "regular" person).
My mother also had insomnia that started around the same time mine did, got worse up to her 40s, and now she's on a seemingly regular schedule now that she's in her 60s. My brother and father are seemingly unaffected by it.
I hate it. I feel your pain in all ways.
However, I like your conceptual theory of vampiric decention...might steal that one from ya. :)
RE: Is Insomnia hereditary?