sleep like a log

Idioms  

1. Also, sleep like a top. Sleep very soundly, as in I slept like a log, or She said she slept like a top. Both of these similes transfer the immobility of an object to that of a person who is sound asleep (since a top spinning quickly looks immobile). The first dates from the late 1600s; the variant is newer.

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Example Sentences

Now, usually I sleep like a log, and did this time until about midnight.

From Arizona Nights by White, Stewart Edward

"Why, after all he went through today, he'll sleep like a log till mornin'."

From The Guns of Shiloh A Story of the Great Western Campaign by Altsheler, Joseph A. (Joseph Alexander)

So it might under ordinary circumstances, but unusual fatigue made him sleep like a log.

From The Young Miner or Tom Nelson in California by Alger, Horatio

"He'll sleep like a log until morning," Miss Emory reassured me.

From The Killer by White, Stewart Edward

I live on brown bread and cheese and goat's milk and sleep like a log in shepherds' huts.

From Adventures and Letters of Richard Harding Davis by Davis, Charles Belmont