Hallucinations before going to sleep, can be seen in the following diseases: 1, episodic sleeping sickness, the patient in the daytime can appear suddenly fall asleep, serious time will fall, for before going to sleep, the patient can appear hallucinations, need to go through the professional doctor diagnosis and treatment, suggest that the patient to adjust the work and rest time, if necessary, can take oral medication to control. 2, hallucinations before going to sleep, especially at dusk, if the elderly If you are a senior citizen and have a memory loss, you can consider the possibility of Lewy body dementia. Lewy body dementia is a neurological degenerative disease, if necessary, the patient can be given to do the intelligence scale score. 3, hallucinations before going to sleep can also be seen in patients with depression, anxiety disorders. Due to depression and anxiety, the patient can have hallucinations, if necessary, it is recommended that the patient consult a psychiatrist to give antidepressant and anti-anxiety drugs orally.