sleeping like a dog

Verb

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

1. (simile) Synonym of sleep like a log.
   • Skookum Bill, full of restless, tireless energy when on the trail, now passed to the other extreme. He slept like a dog, sixteen hours a day, rising to eat and smoke, and then falling back in his bunk, where he coiled himself very much like a hibernating bear. He was stupid with sleep, drugged with...1922, A. M. Chisholm, A Thousand a Plate

   Synonyms:

   sleep like a log