be dead to the world

To be sleeping very soundly. Don't worry, the vacuum won't wake him—he's dead to the world.

to be sleeping very deeply Guy was curled up on the sofa, dead to the world.

Name	Pronounced	Usage
Dmitriy	DMEE-tree	Russian
Genovefa	-	Ancient Germanic (Latinized, ?)
Satish	-	Indian, Hindi, Marathi, Kannada, Telugu
Sung-Min	sung-meen	Korean
Mizuki	mee-zoo-kee	Japanese
Harley	['hɑ:li]