Same here. I assumed the article would be about someone who discovered the joys of being a night owl. I tend to head to bed around 1 or 2am, but if other life constraints allowed me to stay up later I almost certainly would.

Once when I was in my early 20s I had a magical period of 2-3 months where there was no work, no school, and not really even social or family obligations. I would go bed when I was tired and wake up when I woke up. What I found was that every night I stayed up about an hour later than the night before. After 24 days my sleeping cycle went lapped the clock. At the time I interpreted it as, biologically I had a 25 hour cycle. No idea if that was true or not. Probably not. Regardless, if left to my own devices I always tend to stay up into the wee hours.

If there's an opposite of a morning person, I'm it. My entire life, I've felt completely wrecked after waking up, and it takes up to an hour to feel awake and alert. I get progressively more productive until it's time to go to bed again. Apparently it's the other way around for most people.