sleep like a baby
US /sliːp laɪk ə ˈbeɪbi/
UK /sliːp laɪk ə ˈbeɪbi/
1.
to sleep very soundly and peacefully
:
•
After a long day of hiking, I slept like a baby.
•
The new mattress helped him to finally sleep like a baby.
to sleep very soundly and peacefully