Why Do I Drool When I Sleep?
Drooling in your sleep can have a number of causes. In general, when you sleep, the muscles in your face and body relax. Your mouth may fall open causing excess saliva to run out. Luis Alvarez / Getty Images Sleep position can affect whether or not you drool in your sleep. It’s possible that your mouth is falling open as you sleep. Is It Normal to Drool in My Sleep? Drooling in your sleep is often totally normal....