sleep like a log
US /sliːp laɪk ə lɔɡ/
UK /sliːp laɪk ə lɔɡ/

1.
睡得很沉, 熟睡
to sleep very soundly; to sleep deeply and peacefully
:
•
After working all day, I came home and slept like a log.
工作了一整天后,我回到家睡得很沉。
•
The baby was so tired that she slept like a log through the night.
宝宝太累了,整晚都睡得很沉。