Around four o'clock, the shift would begin. My mother's hands, which had been folded calmly in her lap all afternoon, would start plucking at the hem of her blouse. Her eyes would move to the window, then to the door, then back. "I need to get home," she'd say, even though she was sitting in the house she'd lived in for thirty-seven years. "The children will be looking for me."
The children were grown. Her daughter was standing right there in the kitchen in Savannah, holding a glass of sweet tea she couldn't drink because her throat had closed around something she couldn't name. That was 2001. The first year of my mother's Alzheimer's, the year the late afternoons started belonging to someone else.
Sundowning in seniors with dementia is the clinical term for what happened in that kitchen every evening for nearly four years. But the clinical term doesn't capture the way the person you love most seems to step sideways into a world you can't reach, right around the time the light outside starts to change.
If someone you care for has started doing something similar, know two things before we go any further. You are not imagining it. And you are not failing.
What Sundowning Actually Is
Sundowning, sometimes called late-day confusion, refers to a pattern of increased agitation, anxiety, confusion, or restlessness that occurs in the late afternoon and evening hours in people with dementia. The Alzheimer's Association estimates it affects roughly 20% of people with Alzheimer's disease, though some geriatricians put the number closer to one in three.
It isn't a separate disease. It's a symptom cluster, a predictable worsening tied to the clock. Pacing. Crying. Asking to go home. Pulling at clothes. Refusing to eat. The symptoms vary from person to person, but the timing is consistent. Late afternoon into the early evening, sometimes stretching past dark.
Researchers at the National Institute on Aging believe sundowning in seniors is linked to disruptions in the circadian rhythm. Dementia damages the suprachiasmatic nucleus, the brain structure responsible for keeping the internal clock accurate. When the clock drifts, the body loses its ability to distinguish between winding down and winding up.
My mother's doctor in Savannah, Dr. Eula Patterson, was the first person to use the word sundowning with me. She said it matter-of-factly, the way you'd say the weather is changing. And in a way, it was.
The Triggers You Can See and the Ones You Can't
What I've found, after caring for my mother and then spending twenty years sitting with families going through the same thing, is that sundowning rarely has a single cause. It arrives at the intersection of several pressures, and some of them are easier to address than others.
The visible triggers first. Fatigue is the most common. By late afternoon, a person with dementia has spent the whole day processing a world that no longer makes reliable sense. Low lighting is another. As rooms dim, shadows shift and deepen, and for someone already struggling with perception, a darkened hallway can become genuinely frightening. Too much noise, too many people in the house, a television left on in the background. All of it accumulates.
Then there are the triggers you can't always see. Hunger or dehydration, especially in someone who may not recognize thirst anymore. Pain they can't articulate: a toothache, arthritis in the hips, constipation. Urinary tract infections deserve their own line here, because a UTI in an older adult with dementia can mimic or dramatically worsen sundowning overnight. If the agitation escalates without explanation, a UTI should be the first thing you rule out.
Medication side effects are another invisible trigger. Sedatives, anticholinergics, even some blood pressure medications can contribute to late-day confusion. During one of my Seasons of Grace caregiver circles, a woman named Iris told the group her husband's sundowning had gotten dramatically worse over two weeks. Turned out his doctor had switched his sleep medication. A retired pharmacist in our group suggested she check the new prescription's side effects. Within a week of switching back, the worst of the evening episodes had eased.
Not every trigger has a fix that clean. But knowing where to look helps.
Reshaping the Evening
Light first. Always light first.
The single most effective environmental change families can make for sundowning in seniors is adjusting the lighting before the sun goes down. Not after. Before. By 3:30 or 4:00 PM, every lamp in the main living areas should be on. Full-spectrum light bulbs, the kind that mimic natural daylight, make a real difference. GE and Philips both sell them at hardware stores for under $10 a bulb. You're not trying to make it feel like noon. You're trying to prevent the slow dimming that tells a confused brain something is wrong.
Nightlights matter too. Mr. Beams makes a battery-powered, motion-activated version that sticks to the wall, no wiring. My brother James put four of them in our mother's hallway in Savannah after she started getting up at night and standing in the dark.
Beyond lighting, simplify the evening environment. Turn off the television by 4 PM. Reduce the number of people moving through the house. Some families keep a basket of familiar objects near the person's chair: a soft scarf, a wooden spoon, a family photo in a sturdy frame. Things to hold. One woman in our caregiver group kept her mother's old church hat in the basket. Her mother would pick it up, smooth the brim with her fingers, and settle for twenty minutes just holding it.
A white noise machine or a small speaker playing quiet, familiar music can help too. Not new music. Old music. Hymns, if they grew up singing. Simple meditation practices can help caregivers stay grounded during the transition hours. The auditory memory often outlasts everything else.
What the Day Looks Like When Evenings Are the Problem
Something I wish someone had told me earlier: managing sundowning in seniors starts in the morning, not at 5 PM.
The rhythm of the whole day matters. If the person with dementia spends most of the day sitting, under-stimulated, the restlessness will build. Gentle physical activity helps spend that energy before the evening window opens. A short walk after breakfast, folding towels, sorting buttons.
Caffeine after noon is worth cutting entirely. A lighter dinner by 5:00 or 5:30, with a small snack before bed, can prevent the combination of full stomach and low blood sugar that makes nights harder.
Actually, let me back up. We keep saying "the person with dementia" as if they're the only one whose schedule matters. Your schedule matters too. If your mornings are frantic, full of phone calls and errands and trying to fit everything in before the hard hours arrive, the stress you carry into the afternoon will be in the room with both of you. Our loved ones with dementia may not remember our names, but they read our tension like a weather report. During those four years with my mother, the calmer the afternoon was, the calmer the evening went. Not always. But enough to notice.
When the Sun Goes Down and Nothing Seems to Work
Some evenings, despite every lamp and every familiar song and every careful adjustment, the agitation comes anyway. Full force.
Here is what nobody tells you: sometimes sundowning in seniors cannot be prevented. Only weathered. No amount of preparation will stop every episode, and blaming yourself for the nights that go sideways will break you faster than the sundowning itself.
When your person is pacing, or asking to go home for the fourth time in ten minutes, your voice is the most important tool in the room. Low, slow, warm. Not corrective. Do not say, "You are home." Do not say, "I already told you that." Both are true. Neither helps. Try: "You're safe. We're right here together." Sometimes redirecting into the feeling underneath the confusion does what logic cannot.
Offer something physical. A warm blanket around the shoulders. A hand to hold. A cup of decaf tea, heavy on the honey, served in a mug they've used for years. A $40 weighted blanket from Target has done more for a sundowning episode than a prescription, in my experience.
And if they want to walk, let them walk. Pace with them if the house is safe. Lock the exterior doors, put away the throw rugs, and walk the hallway together. Fighting the movement makes it worse.
A man named Clifton came to our Tuesday caregiver circle at Seasons of Grace while his wife was in the middle stages of Alzheimer's. Retired electrician, hands the size of dinner plates. One evening his wife started sundowning hard, pacing and pulling at the front door, insisting their daughter was waiting for her at the school. Clifton tried everything. Nothing worked. So he put on her coat, put on his, and walked her around the block. Three times. She stopped at the mailbox on the third loop, looked up at the stars, and said, "It's cold. Let's go inside." The episode broke.
He told the group the next Tuesday. "I stopped trying to bring her back to my world," he said. "I just went with her to hers for a while." That sentence has stayed with me ever since.
When Sundowning Might Be Something Else
Not every evening crisis is sundowning. Sometimes families attribute new symptoms to the usual pattern when something else is happening entirely.
A sudden escalation, especially one that appears over days rather than weeks, may signal an infection. UTIs, again. Pneumonia. Even a dental abscess. If your loved one's sundowning pattern changes abruptly, call the doctor. Not next week. Soon.
Medication interactions are another culprit. Bring every bottle to the next appointment, including over-the-counter supplements. A 2023 study in the Journal of the American Geriatrics Society found that polypharmacy, five or more medications simultaneously, significantly increased behavioral symptoms in dementia patients.
Sometimes the answer is undiagnosed pain. Arthritis. A pressure sore. Constipation that's gone on for days. People with advanced dementia often lose the ability to point to where it hurts. Ask the doctor about the PAINAD scale, a pain assessment tool designed for non-verbal patients. It takes five minutes and can change the entire care plan. Families considering memory care or assisted living should know that good facilities use these tools routinely.
If you're watching for signs that a parent needs more help, worsening sundowning is one of the clearest signals that something has shifted.
The Part Nobody Wants to Talk About
You.
Sundowning in seniors doesn't just happen to the person with dementia. It happens to everyone in the house. Every afternoon. For months or years. The dread that starts building around 3 PM, the bracing, the way your shoulders climb toward your ears as the light starts to change outside.
During my mother's worst year, 2002, the drive between Asheville and Savannah was every other week. Full-time work. Amara was thirteen. Evenings in Savannah meant sundowning episodes that could last until 9 or 10 PM. One night on I-16 outside Macon, falling asleep at a red light. The horn from the car behind. A gas station parking lot, hands shaking, understanding for the first time that the caregiving had become dangerous to the caregiver.
Someone needs to say this plainly: if you are the primary caregiver for someone with sundowning, you cannot do this alone. You will break. Not because you're weak. Because you're human, and this work is relentless, and the evenings never stop coming.
Respite care is not a luxury. It is survival. A home health aide who comes three evenings a week. An adult day program that tires your person out gently during the afternoon. A family member who takes the Tuesday and Thursday shifts. Find something. Caregiver burnout doesn't announce itself. It accumulates like sediment. By the time you notice it, you're already deep in it.
The Alzheimer's Association 24/7 helpline is 1-800-272-3900. Real people, day and night. Call at 2 AM because the sundowning won't stop, and someone will answer.
The Light We Can Still Offer
My mother died in 2003. But something from those long evenings has stayed with me, and it's what I want to leave here.
Some nights, after the worst of the sundowning had passed, after the pacing and the questions and the reaching for a door that wouldn't take her where she wanted to go, my mother would settle into her chair by the lamp. She would start humming. Not a song anyone could always identify. Just a low, steady sound, the way you'd hum to a child. Her hand would find my head, and she'd smooth my hair the way she had when I was small.
She didn't know my name. But her hand knew where to go.
The person inside the confusion is still there. Not always reachable. Not always recognizable. But there. Somewhere beneath the agitation, beneath the shadowed hallways and the repeated questions, is the person who loved you first.
May your evenings be gentler than you expect. And when they aren't, may you remember that you don't have to carry this alone.
You are doing harder work than most people will ever understand. Every single evening of it matters.
