What Is Sundowning? How In-Home Care Helps Seniors With Dementia at Night
If a loved one with dementia becomes more confused, agitated, or anxious as evening approaches, you are not imagining it. This pattern has a name: sundowning. It is one of the most challenging and least understood symptoms families face when caring for someone with Alzheimer’s or another form of dementia. Understanding what is happening and why can make a real difference in how families respond and how much support is needed at home. Here is what every family should know.
What Is Sundowning?
Sundowning, also called sundown syndrome or late-day confusion, is not a disease or a separate diagnosis. According to the Mayo Clinic, it is a group of symptoms that occur at a specific time of day in people with Alzheimer’s disease and other types of dementia.
The name comes from when symptoms typically appear. According to Cleveland Clinic, symptoms usually start or worsen around sunset, though they can occur at any time of day. Common signs include increased confusion, agitation, anxiety, restlessness, pacing, and difficulty distinguishing dreams from reality.
How Common Is Sundowning?
Estimates vary depending on the source and the setting being studied. The Alzheimer’s Association and several other sources estimate that sundowning affects roughly 20% of people with Alzheimer’s disease. However, other research cited by Novant Health suggests the syndrome may affect as many as two in three dementia patients at some point during their illness. According to Dementia UK, the rate climbs even higher in residential care settings, affecting around 80% of people with dementia who live in care homes, particularly after a recent move or change in environment.
Sundowning most commonly appears during middle-stage dementia. However, it can occur at any stage, including early-stage dementia, though symptoms tend to be milder and less frequent at that point.
What Causes Sundowning?
The exact cause of sundowning is not fully understood. However, researchers point to several contributing factors that likely combine to create the pattern.
Disrupted circadian rhythm
According to the National Institute on Aging, Alzheimer’s disease damages the suprachiasmatic nucleus, the part of the brain that functions as the body’s internal clock. Without proper signals from this region, the body struggles to distinguish day from night, which disrupts normal sleep-wake patterns.
Fatigue and mental exhaustion
Navigating daily life with dementia takes significant cognitive effort. By late afternoon, that mental and physical exhaustion builds up, leaving less energy to cope with confusion, stress, or unfamiliar situations.
Low light and increased shadows
As natural light fades, shadows increase and visibility decreases. For someone with dementia, this can create visual confusion and even trigger hallucinations or heightened agitation.
Unmet basic needs
Hunger, thirst, pain, and the need to use the bathroom can all worsen sundowning symptoms. According to the Mayo Clinic, an underlying infection such as a urinary tract infection can also significantly worsen symptoms and should always be ruled out by a doctor.
Unfamiliar environments
Spending time in an unfamiliar place, or experiencing recent changes to a familiar one, can intensify confusion and distress as evening approaches.
When Sundowning Signals Something More Serious
Any sudden, dramatic change in a person’s behavior or cognition deserves medical attention. According to Azura Living, it is possible for someone with dementia to experience both sundowning and delirium at the same time. Delirium can be caused by treatable conditions like urinary tract infections, pneumonia, or medication side effects. If symptoms appear suddenly or seem unusually severe, contact a doctor right away to rule out an underlying medical cause.
How Families Can Help Manage Sundowning
Several strategies can reduce the frequency and severity of sundowning episodes.
Maintain a consistent routine
According to the Mayo Clinic, keeping a predictable schedule for waking, meals, activities, and bedtime helps regulate the body’s internal clock over time.
Maximize light exposure during the day
Bright morning light helps reinforce healthy circadian rhythms. Spending time outdoors or near windows earlier in the day can reduce confusion later in the evening.
Limit naps and stimulants
Limiting daytime napping and avoiding caffeine or sugar in the afternoon and evening supports better nighttime sleep and reduces the buildup of fatigue that contributes to sundowning.
Create a calm evening environment
Reducing background noise and stimulating activity in the evening helps lower agitation. A nightlight can also reduce confusion and fear that comes from dark, unfamiliar shadows.
Use the Four R’s approach
The National Council of Certified Dementia Practitioners recommends a simple framework. Reassure the person calmly that they are safe. Maintain routine with manageable, predictable steps. Reminisce using photos or familiar memories to provide comfort. Redirect attention to a different activity when agitation increases.
How In-Home Care Supports Families Through Sundowning
Sundowning is exhausting for family caregivers, especially because it often occurs during the very hours when they are also winding down for the day. A Thrive USA care coach provides consistent, trained support during these difficult evening hours, allowing family members to rest while their loved one receives calm, patient care.
Our care coaches are trained to recognize the early signs of sundowning and respond with the kind of reassurance and redirection that reduces escalation. In addition, they help maintain the consistent daily routines that are proven to reduce sundowning frequency over time, including light exposure during the day, calm evenings, and predictable schedules.
For families managing the overnight hours, overnight in-home support gives caregivers the chance to sleep through the night, knowing their loved one is safe and supported even during the most difficult hours of the day.
Visit our Personal Care page and our Companion Care page to learn more about how we support families navigating dementia and memory loss. Contact us today for a free consultation.
Sundowning is challenging, but no family has to navigate it alone. With the right support, calmer evenings are possible.
Frequently Asked Questions About Sundowning
Sundowning, also called sundown syndrome, is a pattern of increased confusion, agitation, anxiety, and restlessness that typically worsens in the late afternoon and evening for people with Alzheimer’s disease and other dementias. It is not a separate diagnosis but a recognized cluster of symptoms linked to changes in the brain.
Estimates vary by source. The Alzheimer’s Association estimates sundowning affects about 20% of people with Alzheimer’s, while other research suggests it may affect as many as two in three dementia patients at some point during their illness. Rates are even higher in residential care settings.
The exact cause is not fully understood, but contributing factors include disrupted circadian rhythm, fatigue from the cognitive effort of the day, low light and increased shadows, unmet needs like hunger or pain, and unfamiliar environments. An underlying infection or medication side effect can also worsen symptoms and should be ruled out by a doctor.
Helpful strategies include maintaining a consistent daily routine, maximizing light exposure during the day, limiting naps and stimulants in the afternoon, creating a calm evening environment, and using reassurance and gentle redirection when agitation increases.
A trained care coach provides calm, consistent support during the difficult evening and overnight hours when sundowning typically occurs. This allows family caregivers to rest while their loved one receives patient, knowledgeable care that helps reduce agitation and confusion.