What term describes a condition where a person becomes confused and disoriented primarily at night?

The term that describes a condition where a person becomes confused and disoriented primarily at night is "sundowning." This phenomenon is often observed in individuals with dementia or other cognitive impairments, where their confusion and agitation increase in the late afternoon and evening hours. Factors contributing to sundowning can include fatigue, changes in the environment as the light decreases, or the natural circadian rhythms that affect cognitive function.

Sundowning typically manifests as restlessness, irritability, and increased confusion, making it important for caregivers to implement strategies that create a calming environment in the evening to help mitigate these symptoms. Understanding this condition is crucial for effective care and support for individuals experiencing cognitive decline, as well as for optimizing their quality of life during vulnerable times of the day.