sleep-in vs stoppage

sleep-in

noun
  • An instance of sleeping in, sleeping late, sleeping until one feels fully refreshed rather than rising at a prespecified time. 

stoppage

noun
  • A pause or halt of some activity. 

  • Something that forms an obstacle to continued activity; a blockage or obstruction. 

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