Definition
Said to someone before they fall asleep, wishing them a good sleep.
Also Said As
- pleasant dreams
How People Actually Use It
Sleep well, as in good night. Said to someone before they fall asleep.
""Good night. Sweet dreams." Synonyms: Pleasant Dreams, 56... 5: s-w-e-e-t 6: d-r-e-a-m-s"
Source: Urban Dictionary