lose sleep

lose sleep (over somebody/something)

to be worried and unable to relax because of something An asteroid could hit the earth, but it's not something you should lose sleep over.

Name	Pronounced	Usage
Shalom	sha-LOM	Hebrew
Arezou	-	Persian
Zarathustra	zahr-ə-THOO-strə (English)	History
Setsuko	se-tsoo-ko	Japanese
Sigsteinn	-	Ancient Scandinavian
Munkhtsetseg	-	Mongolian