In the vast majority of cases, there’s no reason to worry. Having to wash your pillowcase from time to time doesn’t mean something is wrong. However, if the drooling becomes excessive and is accompanied by other signs—such as loud snoring, a frequently sore throat upon waking, or persistent fatigue—it may be worth seeking medical advice.
Most of the time, a few simple adjustments are enough to improve the situation without needing to go any further.

Easy tips for a more comfortable night
If the dampness bothers you, there are simple and accessible solutions. Sleeping more on your back can help reduce saliva flow. Slightly elevating your head with a supportive pillow can also improve nighttime breathing.
Staying well hydrated during the day is important too; drinking enough water contributes to better overall balance. Finally, choosing a cotton or bamboo pillowcase—breathable materials that are easy to care for—can significantly improve nighttime comfort.
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