Sleep Disorders in Dementia and Their Management

Sleep disorders are frequently observed in 40–60% of dementia cases. The complications of sleep disorders cause a decrease in the quality of life of patients and a burden on caregivers. It is clinically very important to address sleep disorders because they can be a factor in the worsening of behavioral and psychological symptoms of dementia. Sleep disorders in those with dementia are often caused by a combination of various factors and have complex pathologies, so they are difficult to treat. In this paper, we classify the factors associated with sleep disorders in dementia into three categories and describe how to address them in clinical practice.