Sundowners Syndrome: Causes, Signs, and How to Manage It

Quick answer: Sundowners syndrome is a pattern of increased confusion, agitation and restlessness that appears in the late afternoon and evening, most often in people living with dementia. It is not a disease or a diagnosis of its own — it describes when symptoms flare, not a separate condition. Common triggers are a disrupted body clock, end-of-day fatigue, fading light and shadows, too much noise or activity, hunger, and being overtired. Watch for pacing, wandering, anxiety, suspicion, repeated questions and trouble settling at night.

What is sundowners syndrome?

Sundowners syndrome, often simply called sundowning, describes a group of behavior and mood changes that tend to show up in the late afternoon and evening. As daylight fades, a person living with dementia or Alzheimer's may become more confused, anxious, irritable, or restless than they were earlier in the day. The name comes from the timing: symptoms rise as the sun goes down and may continue into the night.

It is important to understand that sundowning is not a separate disease and it is not a diagnosis on its own. It is a pattern of symptoms that frequently accompanies dementia. Some families notice it for a season and then see it fade; others manage it for years. Either way, it is common, it is understandable, and there are gentle, everyday ways to ease it. If you are caring for someone at home in Broward County, you are far from alone in facing those harder evening hours.

Why does sundowning happen?

There is no single cause, and researchers are still studying it. What caregivers and clinicians do see is that several everyday factors tend to stack up as the day winds down. Understanding them helps you spot what might be setting off a difficult evening.

A disrupted internal clock

The brain keeps a roughly 24-hour rhythm that tells the body when to feel alert and when to wind down. Dementia can damage the parts of the brain that manage this rhythm, so the natural cues that say "it's time to rest" get scrambled. The result can be wakefulness, agitation, or confusion at exactly the time the body should be settling.

End-of-day fatigue

By late afternoon, a person has spent mental energy all day simply making sense of the world. That accumulated tiredness lowers the reserves needed to stay calm and oriented, so small frustrations feel much bigger.

Fading light and shadows

As rooms grow dim, shadows deepen and familiar spaces look unfamiliar. Low light makes it harder to recognize people and objects, which can spark fear or suspicion. A coat on a chair or a reflection in a dark window can be misread as a stranger.

Overstimulation or too little to do

A noisy, busy household at dinnertime, with television, cooking, and several conversations at once, can overwhelm someone whose brain is already tired. The opposite, a long stretch of boredom with nothing to anchor the day, can also leave a person restless and searching.

Unmet physical needs

Hunger, thirst, needing the bathroom, pain, or being too warm or too cold can all drive agitation, especially when a person cannot easily put the feeling into words. Certain medications and their timing can play a role too. Because that is a clinical question, it is worth reviewing the schedule with the prescribing doctor, and you can read more in our overview of medications that cause sundowning.

Signs and symptoms to watch for

Sundowning looks different from person to person, but families tend to notice a cluster of late-day changes:

• Increased confusion or disorientation as evening approaches
• Restlessness, pacing, or fidgeting that is hard to redirect
• Wandering or trying to leave the house, sometimes to "go home" even when already home
• Anxiety, agitation, or sudden irritability
• Suspicion or accusations that were not present earlier in the day
• Repeating the same questions or requests
• Trouble falling asleep or staying asleep once in bed

One helpful step is to keep a simple log for a week or two. Note when episodes start, what happened just before, and what seemed to help. Patterns often appear quickly, and they make it much easier to head off the next evening before it escalates. Sundowning can show up at different points in the disease, and if you are wondering about timing, our guide on what stage of dementia sundowning appears walks through what to expect.

Non-medical ways to manage sundowning at home

Most of what eases sundowning is not medical at all. It is about shaping the environment and the rhythm of the day so the evening feels safe, calm, and predictable. These are the kinds of supports a trained home-care aide can help a family put in place.

Build a steady daily routine

Predictability is reassuring. Try to keep wake-up, meals, activities, and bedtime at about the same times every day. When the body knows what comes next, there is less room for the anxiety that fuels sundowning. Keep the most demanding tasks, like appointments or bathing, in the morning when energy is highest.

Let in plenty of daytime light

Bright, natural light during the day helps reset that internal clock. Open the blinds, sit near a sunny window, or spend time outdoors in the cooler parts of a Florida morning. Then, as evening comes, turn on lamps before the room gets dim. Closing curtains at dusk and lighting the room well reduces the confusing shadows that often trigger fear.

Keep evenings calm and low-key

Wind the household down as the day ends. Lower the noise, turn off jarring television, and limit the number of people coming and going. Soft music, a favorite blanket, a calm voice, and a quiet activity can do a great deal. Caffeine and large meals late in the day are best avoided; a light, early dinner sits better.

Time activity and rest wisely

A person who naps too long in the afternoon may be wide awake and restless at night. Gentle movement earlier in the day, a short walk or light chores, can improve nighttime sleep. The goal is to spend energy in daylight and protect the evening for rest.

Respond with reassurance, not correction

When confusion peaks, arguing or correcting usually makes things worse. Instead, stay calm, validate the feeling, and gently redirect. If a loved one wants to "go home," you might say, "Tell me about home," then ease into a comforting activity. Your steady, warm presence is often the most powerful tool you have.

When to talk to a doctor

DavidStar is a non-medical agency, so this is the right moment to mention the clinical side. If sundowning appears suddenly, gets noticeably worse, or comes with new symptoms like fever, pain, or signs of infection, talk to the doctor promptly. A sudden change can signal something treatable, such as a urinary tract infection or a medication interaction, rather than the dementia itself. Your physician can also review sleep and medication timing. Our caregivers support your family's plan and share what they observe, but diagnosis and treatment always belong with your clinicians.

How DavidStar supports Broward families through sundowning

Difficult evenings are draining, and the hours after dark can be the hardest and loneliest for a family caregiver. That is where steady, compassionate help makes a real difference. Our HHAs and CNAs provide non-medical dementia & Alzheimer's care built around routine, calm, and dignity, and when episodes run late, our 24-hour care offers overnight supervision so your loved one stays safe and you can finally rest.

We serve seniors and adults with disabilities across Weston, Fort Lauderdale, Coral Springs, Oakland Park, and the rest of Broward County. You meet your caregiver first, so the person walking through the door is someone your family has chosen and trusts. Our caregivers include Spanish, Haitian Creole, French, and Russian speakers, our owners and care coordinators speak Hebrew, and we provide kosher and Shabbat-observant care when families need it.