awaken vs hit the hay

awaken

verb
  • To cause to become aware. 

  • To call to a sense of sin. 

  • To cause to become awake. 

  • To bring into action (something previously dormant); to stimulate. 

  • To stop sleeping; awake. 

hit the hay

verb
  • To go to bed. 

How often have the words awaken and hit the hay occurred in a corpus of books? (source: Google Ngram Viewer )