
Dead to the world
Sleep Intensity
Indicates someone is sleeping very deeply, usually due to extreme tiredness or exhaustion.

He didn't even hear the thunderstorm last night; he was dead to the world.
Not Disturbable
Used to describe someone who is so soundly asleep that they're not likely to wake up easily.

Don't bother trying to wake her up for breakfast; she's dead to the world right now.
Exaggerated Expression
The phrase is often used hyperbolically to emphasize just how deeply asleep someone is.

After the marathon, Jim was dead to the world for hours.
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension