live in vs sleep in

live in

verb
  • Used other than figuratively or idiomatically: see live, in. 

  • To reside on the premises of one's employer (used especially of domestic staff such as nannies, cooks, maids, etc.) 

sleep in

verb
  • Used other than figuratively or idiomatically: see sleep, in. 

  • To sleep late; to go on sleeping past one's customary or planned hour. 

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