What time do you go to bed? What time do you usually get up? How much time do you have for sleeping?
I heard that some people (like Elon Musk) sleep for 4 hours in order to have more time to do things during the day. Is it dangerous to health?
this information is wrong...
from what I hear, Elon musk doesn't sleep only 4 hours in 24 hours but he sleeps erratically, and every 4 hours he wakes up from sleep, this usually happens to geniuses whose brains are very active.