If you drool while you sleep, it’s a sign that your

dorms, sleepovers) due to fear of drooling or other involuntary habits like snoring or talking in sleep.

8. Literary & Linguistic Connections

Language expressions related to drooling often imply:

Desire or anticipation (“drooling over a new car”)

Idleness or lack of intelligence in some derogatory phrases

Childishness or immaturity, especially in metaphoric use