kindling vs sleeping

kindling

noun
  • Small pieces of wood and twigs used to start a fire. 

  • The act by which something is kindled. 

adj
  • Illuminated, lit. 

sleeping

noun
  • The state of being asleep, or an instance of this. 

adj
  • Asleep. 

  • Used for sleep; used to produce sleep. 

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