Alzheimer’s patients always sleep for the following reasons: 1, with the patient’s disease has a relationship, Alzheimer’s disease leads to cognitive dysfunction of the patient, the spirit of a certain damage, in the daily life activities, and the ability to communicate with other people decreased, the patient will be shown as apathy, easy to sleep more. 2, with the patient’s sleep point to a certain relationship, Alzheimer’s disease may lead to the patient’s The sleep rhythm of dementia is disturbed, so dementia patients sleep more in the daytime, in the evening patients will sleep relatively little or not sleep at night, like to do other things. This situation should be actively treated for Alzheimer’s disease, and the patient should be given to improve the cognitive function in the early stage, for example, through oral acetylcholinesterase inhibitors to improve, commonly used in the clinic, such as sarcosine methyl, donepezil, and oral drugs to improve the metabolism of the brain, such as fenelaxetam, olanzapine capsule.