There are many reasons for poor sleep quality, and the common causes are mainly the following: 1. Physiological factors, such as high-intensity exercise and work before bedtime, or eating a lot of strong tea, coffee and other foods that easily excite the brain nerves before bedtime, can cause poor sleep quality and excessive dreaming, but this generally does not require excessive treatment, remove the cause, through sufficient rest to improve the symptoms. 2, mental factors, such as anxiety disorders, depression, can cause sleep disorders, insomnia and dreamy clinical performance, which need to address the specific causes of symptoms, can take Dextran to control the primary disease, serious cases can apply sedative-hypnotic drugs, such as alprazolam, zopiclone, etc. to improve the symptoms. 3, drug factors, such as asthma drugs Aminophylline, ephedrine, or certain hormonal drugs can cause sleep disorders, resulting in insomnia and dreamy symptoms, which can be relieved or disappeared after immediate discontinuation.