On nights that I could not sleep well, I would do one of the followings: eat a big bowl of spicy noodle (frequent), read a book (sometimes), or practice Chinese calligraphy (just started this strange habit recently).
On sleepless nights, if I choose to practice Chinese calligraphy, I particularly like to write the word 捨得 (Shědé) over and over again until the meaning is somehow embedded within me. Like a romance that I know could not exist because clapping with just one hand does not make a sound. By letting go (捨 – Shě) such an unfruitful illusion that both parties are meant for each other, then it would be possible for all parties to gain (得 – Dé) more lovely and precious experiences someday.
Heh. I’m still learning despite the big talk.