If I’m staying home for the day/don’t have a real schedule or anywhere I need to be, I need somewhere between 9 and 10 hours to feel rested and awake. Less sleep than that, and I’ll have an increased tendency to get sick.
If I have to be at work, or have somewhere else to be, I’m usually up-too-late anxious and sleep for 6 or 7 hours, but I’m not tired during the day, and I’m not any more susceptible to picking up an illness (that I’ve noticed).
Stupid human construct. O_o