in the arms of Morpheus vs sleeping

in the arms of Morpheus

prep

  • Asleep, sleeping. 

  • In a state of being completely forgotten, or of unawareness. 

sleeping

adj

  • Asleep. 

  • Used for sleep; used to produce sleep. 

noun

  • The state of being asleep, or an instance of this. 

How often have the words in the arms of Morpheus and sleeping occurred in a corpus of books? (source: Google Ngram Viewer )