Certain medications can also cause dry mouth, both at night and during the day 1. How to treat dry mouth at home. Dry mouth can be temporary and treated with several home remedies, along with any treatments your doctor may recommend. One of the most frequently asked questions we get from patients is, “What causes dry mouth while sleeping?” There are numerous causes. Below are some lifestyle improvement tips to provide respite from dry mouth at night: If you live in an ultra-dry climate or use heating or air-conditioning all night long, consider using a humidifier; Avoid alcohol, coffee, dairy products, and other foods that make saliva thicker. Complications from Dry Mouth Many people suffering from dry mouth often don’t notice it until their saliva levels drop by 50%. Dry mouth is more than just feeling thirsty. Here are some things you can do at home to help treat dry mouth at night: Keep a glass of water next to your bed in case you wake up at night and your mouth is dry. While the causes of dry mouth at night may range from a natural lack of saliva production to a side effect of a health condition, dry mouth is not a disorder itself. Second, dry mouth causes rampant tooth decay. Especially avoid them at night. Having a dry mouth makes it uncomfortable to do basic things like breathe, speak, and swallow. Learn more about dry mouth treatment, causes, & symptoms. Central and complex sleep apneas are serious conditions that can be diagnosed through tests, so if you are waking up with a dry mouth and sore throat, you should consult your physician. During the night, sleeping with your mouth open or snoring can contribute to a lack of saliva in the mouth. What Causes Dry Mouth at Night? There is no question; if you’re losing sleep over the sticky, uncomfortable symptoms of dry mouth at night, you’re undoubtedly wondering, “why do I have dry mouth at night” and most certainly “how can I stop nighttime dry mouth so I … Other causes of dry mouth include side effects of different medical conditions and radiation and chemotherapy treatments, autoimmune disease, dehydration or lifestyle habits (chronic users of tobacco, for example). If you have a constant dry mouth at night, this can contribute to both minor and serious health problems. Emotional causes, such as stress, and side effects to medications can also play a factor. Causes of Dry Mouth The causes of xerostomia, the medical term for dry mouth, can vary, but during the nighttime hours, lack of saliva is most often caused by sleeping with your mouth open or snoring. However, dry mouth at night can also be a symptom of an acute illness or an underlying medical condition. Dry mouth at night is a common uncomfortable condition that affects sleep and oral health. Infection can occur in the mouth and inflamed gums and halitosis are other undesired symptoms of the condition. It affects your overall health. Dry Mouth at Night: The Causes & Remedies To Get More ZZZ’s. Causes. In all cases, one of the symptoms is dry mouth 4. Kind of important stuff. As a symptom, dry mouth can lead to serious health issues. It is possible with dry mouth to get sore and cracked skin both inside the mouth and on the tongue, increasing the risk of painful mouth sores. Dry mouth (Xerostomia) is caused at night or during the day when the salivary glands don't produce enough moisture to keep the mouth wet due to prescriptions, illness, CPAPs, open-mouth sleeping, and more. Pharmaceutical Causes. Night thirst and dry mouth at night can be caused a number of things. The good news is that many of the causes of dry mouth can be easily fixed. Dry mouth at night can occur as a result of a normal nighttime decrease in saliva production.