Drooling while sleeping is common and usually harmless, but if it happens frequently or excessively, it could be a sign of an underlying health issue. Many people ignore this symptom, thinking it’s just a minor inconvenience. However, persistent drooling can indicate serious medical conditions affecting the nervous system, digestion, or respiratory health.

If you wake up with a wet pillow regularly, you might want to check for these 6 possible health conditions.

1. Sleep Apnea – Interrupted Breathing During Sleep

Excessive drooling can be linked to obstructive sleep apnea (OSA), a condition where breathing repeatedly stops and starts during sleep.

✔ Why It Causes Drooling: