Sundowning and Dementia: What to do About Late-Day Behaviors For those with dementia and their caregivers, the late day hours can often be a disorienting, stressful time. When the sun goes down, individuals with dementia may become agitated, restless, confused, irritable and at times even delirious—seeing and hearing things that are not there—to a greater extent than they do early in the day. This symptom of dementia is known as “sundowning” or “Sundowners Syndrome.” For individuals with dementia and their caregivers, it can be a scary, upsetting nightly occurrence. Read more