when you’re really tired but you can’t fall asleep
(but actually though - studies of humans and other species have shown that you will indeed die if you go long enough without sleep. Some humans have a rare genetic condition called fatal familial insomnia where they eventually become unable to fall asleep and die. Not to scare you or anything - a few nights of sleep deprivation are not going to come anywhere near killing you - but it is important to do whatever you can to ensure you have a comfortable sleeping environment and set aside adequate time to sleep. It’s often easier to get to sleep if you have a routine of going to bed and getting up at consistent times.)











