NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we may earn a commission. Learn more. Do you wake up in the middle of the night and need to ...

Dry mouth, or xerostomia, occurs when there is not enough saliva (or "spit") to lubricate the tongue, gums, and inside of the cheeks. Saliva is critical for chewing, swallowing, digestion, protecting ...

NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we may earn a commission. Learn more. Do you wake up in the middle of the night and need to ...

If you use a continuous positive airway pressure (CPAP) machine for obstructive sleep apnea (OSA), you may breathe better at night. But you may also have dry mouth in the morning. Dry mouth is a ...