sleeping like a log

Verb

sleep like a log (third-person singular simple present sleeps like a log, present participle sleeping like a log, simple past and past participle slept like a log)

1. (simile) To sleep heavily, long and without disturbance.
   • Swithin chuckled when he read it, and feeling frightfully tired, went to bed and slept like a log.1909, John Galsworthy, Villa Rubein, and Other Stories

   Synonyms:

   sleep like a baby, sleep like a dog, sleep like a mouse, sleep like a rock, sleep like a top