N.Y. State of Mind

Frank Sinatra sings about “New York”:

I want to wake up in the city that never sleeps.

Nas has his own take in “N.Y. State of Mind”:

I never sleep, cuz sleep is the cousin of death.
I lay puzzled as I backtrack to earlier times
Nothing’s equivalent to a New York state of mind.

It sounds so much cooler to say one’s in a New York State of Mind than to say he has insomnia.