Depression is difficult to sleep may be caused by neurological factors, psychological factors, living disorders and other factors, the causes of different treatments are different, as follows: 1. Neurological factors:Diseases cause neurotransmitters in the brain to become dysfunctional, leading to insomnia. 2. Psychological factors: depression is a kind of mental illness with long time low mood, low self-evaluation as the main clinical manifestation, long-term self-doubt, nonsense, difficult to sleep. 3. Dysfunctional living:Patients during the disease, there can be a loss of interest in all things, coupled with the rhythmic performance of daytime and nighttime, the night may affect the sleep, the loss of the normal rhythm of life, it is difficult to fall asleep. To solve the depression caused by difficult to sleep should first find the cause of insomnia, in the drug treatment at the same time, adjust the mood, maintain a happy state of mind and body, appropriate exercise to divert attention, avoid thinking nonsense, develop a better routine, choose a more quiet and comfortable environment conducive to sleep.