I intentionally left out talking about stress, but I think it's also trivially true at the big picture level, too much stress can kill you. X is true, Y is true

I intentionally left out talking about stress, but I think it's also trivially true at the big picture level, too much stress can kill you. X is true, Y is true, X and Y is also true... But stress is a much more vague and hazy notion than sleep when you get down to specifics, we have few rules of action to agree on even in principle like "get your ~8 hours of sleep (even if that involves napping) before you look at other potential boosters" and we have contradictory notions about certain types or levels of stress actually being better for you in the long run whereas chronic sleep deprivation seems to have no long term benefits.