all you need is like 1-2 pages of text on paper, sometimes less. works every time. i used to swear by fiction but lately iβve been reading a lot of βhard booksβ for example Concerning the spiritual in art by wassily kandinsky and Memories dreams reflections by carl jung and i think these work even better for sleepiness in the way they make me feel too stupid to be awake.
blue light from the phone/laptop etc will kill you