[wruza]

I used to sleep like this too, for around 15 years (20-35yo). Then I began to experience many-day insomnias, or inability to wake up until my body feels like it. Troubles with digestion, immune system, motivation and mental state in general (all interlinked). Checking my hormone levels was like rolling dice every time. My endocrinologist, gastroenterologist, neurologist, psychotherapist all told me that if I don't correct my sleep cycles and get married, I'll suffer even more. I did the former half a year ago and feel much better.

It doesn't have to be connected, maybe my health would deteriorate independently of sleep or alone factors, but doctors say that it puts you into the risk group at the very least. I'd say be careful, but 5-10 years ago I'd also waved it away as irrelevant :)