Yeah, but I've met people who think it's "normal" to wake up tired and exhausted even after multiple (or even many) nights of sufficient sleep, time-wise.

I remember one person who thought waking up tired is just part of being an adult?

The original comment said "multiple folds higher chances to be depressed, unemployed", for me that's a bit like saying that being on fire has a very high chance to make you depressed and unemployed.

Yeah, of course that's true, but the effect on performance and well-being after a sleep apnea night is so obvious to me, I don't have to look for the proximate cause...

EDIT: Through the other answer came to me that maybe in other cases, it's not so directly obvious just after waking up.

Waking up tired could be caffeine addiction too, which I think most adults are addicted to