Why do i find myself drooling after i wake up from a nap?

Deep sleep: Enjoy the wonderful deep sleep of the young. Your mouth pops open as you fully relax and allows your saliva to come out. You don't swallow your own saliva unless it builds up enough to trigger the reflex. Try changing your position to your side instead of tummy sleeping to keep more saliva inside your mouth.

Normal, common: Drooling while sleeping is a common problem with no good answers that is really normal but a common source of teasing by spouses and partners