Drooling during sleep is a common occurrence for many people and is usually not a cause for concern. It often happens when the muscles of the mouth and throat relax during sleep, allowing saliva to escape the mouth. While occasional drooling is normal and typically harmless, excessive drooling could indicate an underlying health issue, such as:
- Sleeping Position: Sleeping on your back can sometimes lead to increased drooling because gravity can cause saliva to pool in the mouth and leak out.