Do you often wake up with a drool spot on your pillow? Everyone drools occasionally, especially when battling nasal congestion. However, if you often get up in the morning with drool on your pillow or saliva dried on your chin, it may be a sign of sleep apnea. The disorder causes frequent breathing disturbances while sleeping. Although drooling and sleep apnea may seem like two separate issues, they are often connected. Here’s how sleep apnea therapy can stop you from drooling.