drowsing vs in the arms of Morpheus

drowsing

noun
  • The act of one who drowses. 

in the arms of Morpheus

prep
  • Asleep, sleeping. 

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

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