Waking up with a dry throat may be the result of sleeping in an environment with too high a temperature, diabetes, dry syndrome, nasal polyps, reflux esophagitis and other causes. 1. Sleeping environment temperature is too high: lack of air circulation in the bedroom, high temperature air dryness and lack of water, bedding pajamas are too thick, sleep for a long time open mouth breathing and other physiological factors lead to a lack of moisture in the throat, so waking up with a very dry throat. 2. Diabetes: patients due to high blood sugar, more than the renal glucose threshold, glucose into the urine, resulting in increased urine osmolality, osmotic diuresis, the body’s water at night a large number of loss, so waking up with a very dry throat. 3. Dry syndrome: autoimmune system abnormalities produce antibodies to attack the salivary glands, lacrimal glands and digestive glands and other glandular tissues throughout the body, resulting in salivary synthesis and secretion disorders, so you will wake up with a very dry throat. 4. Nasal polyps: Nasal polyps block the nasal cavity, affecting normal nasal breathing, leading to open-mouth breathing, which can cause dry throat. 5. Reflux esophagitis: stomach acid and other substances in the stomach at night reflux through the esophagus to the throat, corrosion and stimulation of the local mucosa. So you will wake up with a dry throat. Waking up with a dry throat may be related to a variety of factors, it is recommended to actively consult a doctor for a clear diagnosis, the cause of the treatment.