seek one's virtuous couch vs zzz

seek one's virtuous couch

verb
  • To go to bed: to lie down to sleep. 

zzz

verb
  • To sleep or snore. 

intj
  • A snoring sound, implying that somebody is asleep. 

How often have the words seek one's virtuous couch and zzz occurred in a corpus of books? (source: Google Ngram Viewer )