noon vs sleep over

noon

verb
  • To relax or sleep around midday 

noun
  • The highest point; culmination. 

  • The letter ن in the Arabic script. 

  • The time of day when the sun is in its zenith; twelve o'clock in the day, midday. 

sleep over

verb
  • To spend the night as a guest in someone's home. 

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