in the arms of Morpheus vs slumbering

in the arms of Morpheus

prep

  • Asleep, sleeping. 

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

slumbering

adj

  • Temporarily inactive. 

noun

  • sleep 

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