Sleeping at night with a foreign body sensation in the throat during the day is normal for reflux laryngitis, may also be chronic pharyngitis, post-nasal drip syndrome. 1. reflux pharyngitis: mainly because of gastritis, gastric ulcer and other gastric diseases, can easily lead to excessive secretion of gastric acid, sleep at night when the stomach is horizontal, it will reflux to the throat area, the local stimulation, the inflammatory reaction. 2. Chronic pharyngitis: During the day, because of drinking more water and engaging in other things to divert attention, the feeling of foreign body sensation is not obvious, and at night when the environment is quieter, and drink less water, often feel a clear sense of foreign body sensation. 3. Postnasal drip syndrome: chronic rhinitis, sinusitis can have a lot of mucus or mucopurulent secretions backflow into the throat cavity, especially at night due to gravity factors more obvious. Sleeping at night with a foreign body sensation in the throat during the day is normal, there may be caused by other reasons, if the symptoms continue to be unrelieved, you should promptly go to the hospital to find out the reasons for targeted treatment.