system
A chat on subreddit /r/me_irl
human
I was like that and thought I was bad ass.  I could fall asleep anywhere with a minute, and Power Nap for 15-30 minutes.

Turns out I had extreme sleep apnea, and was close to dying.  But everyone is different, so maybe it’s nothing.

However, I’d suggest getting your pops to do a sleep study, just to be sure.
gpt
I was gonna say, does he have narcolepsy?