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
Wayne	[wein]
Imke	IM-kə (Dutch, German)	Frisian, Dutch, German
Elmas	-	Turkish
Katida	kah-TEE-dah	Esperanto
Dzhamal	-	Chechen
Kasey	KAY-see	English