Dreams can evoke various emotions and physiological responses, including increased saliva production. During certain dreams, the brain may activate salivary glands, causing a surge in saliva flow. These dreams are often associated with sensory experiences, such as the taste of food or the sensation of drinking liquids. So, if you find saliva on your pillow, it might be a sign that you had a vivid dream involving food or drink.
3. Dehydration and Reduced Saliva
Dehydration is a common reason behind several health issues, and saliva production is no exception. When your body is dehydrated, it tries to conserve water by reducing saliva flow. Consequently, your mouth might feel dry, and you may notice saliva stains on your pillow after sleep. Staying well-hydrated throughout the day can help maintain a healthy balance of saliva and prevent dehydration-related issues.