on flights, i wear a knitted hoodie that covers my entire face for privacy when trying to sleep. it kinda helps, because i don't want people potentially seeing me drooling in my sleep. what similar practical introvert tips do you have?

btw i don't usually drool in my sleep lol, but it happens like 1 out of 30 times, but i'm just paranoid about it.

sunglasses are also kinda good to be a little more in your own world.