catching some zzz’s vs dormant

catching some zzz’s

dormant

adj

  • In a sleeping posture; distinguished from couchant. 

  • Inactive, sleeping, asleep, suspended. 

  • Leaning. 

noun

  • A crossbeam or joist. 

How often have the words catching some zzz’s and dormant occurred in a corpus of books? (source: Google Ngram Viewer )