I’m dubious of the value in labeling everything a “syndrome” or a “disorder” or a “condition,” but it’s a pretty apt descriptor of my habits. I can wake up at earlier hours, if I have to. But going to sleep before midnight is hard, unless I’m truly exhausted. And that’s been true for years, now.
And I rather liked this Achewood comic, which (while not exactly my attitude) does to some extent encapsulate my irritation that society treats sleeping late as somehow morally weak — nevermind how many hours of sleep you’re actually getting.
(Diagnosis and comic from toddalcott and comments therein.)