Question

why do we salivate during a nap of day time?

Answer 1

.    It is possible that dro oling or excess salivation flowing out of mouth onto the pillow and b ed sheet happens.  The reason could be that the person sleeps onto one side, with mouth open and a bit in a sl anting position.

   It is possible that those who sno re and those who have some breathing problems with nose, d rool.  Those breathing through mouth during sleep could dro ol.

   There could be other conditions like some mental disability.

Answer 2

Answer:

Explanation:

The body normally produces more than 1 liter of saliva per day. ... The simplest answer is that you drool during sleep because your mouth is open. The muscles of the body relax during sleep, especially during REM sleep, and it is possible for your mouth to fall open at this time.