Sundowning, Wandering, and Agitation, Stage by Stage

What stage of dementia does sundowning start?

Most commonly the middle stage, though it does not read a calendar. Federal descriptions of Alzheimer's put wandering and agitation squarely in the moderate stage, and specifically note that they show up in the late afternoon and evening — greater supervision becomes necessary at exactly the point when the household has the least energy left 1Ref 1National Institute on Aging (NIH) (2024).What Are the Signs of Alzheimer's Disease?.That the moderate stage of Alzheimer's may bring wandering — particularly in the late afternoon and evening — along with agitation and greater supervision needs, and that the disease is described as progressing through preclinical, mild, moderate, and severe stages.. The Alzheimer's Association's three-stage framing describes the same middle stretch as the one where confusion deepens and help is needed across the day 2Ref 2Alzheimer's Association (2024).Stages of Alzheimer's.The three broad stages of Alzheimer's — early with retained independence, middle with increasing help needed and growing confusion including wandering, and late with loss of communication and full dependence — used here as the frame for the behavior-by-stage table..

But the honest answer includes an asterisk. Evening difficulty can appear early in some people and never appear at all in others, and its arrival does not confirm a stage or predict what comes next. A person can sundown badly for a year and then stop. If you are trying to work out when sundowning usually begins in order to locate your parent on a map, the behavior is a poor instrument for it. Function is what stages a person; behavior is what exhausts a family.

These behaviors concentrate in the middle stage because that is the only stage with both a mobile body and an unreliable judgment. The combination is the risk — not either half alone.

That framing explains the whole page. Early on, judgment is intact enough to keep someone safe. Late on, the body has stopped cooperating. In between sits a person who can open a door, walk four miles, and not know which way home is.

What sundowning is, and what it isn't

The National Institute on Aging defines it as confusion, irritability, restlessness, or agitation that appears or intensifies as the light goes 3Ref 3National Institute on Aging (NIH) (2024).Coping With Agitation, Aggression, and Sundowning in Alzheimer's Disease.The definition of sundowning as restlessness, agitation, irritability, or confusion that begins or worsens as daylight fades, and the NIA's management tips: daytime light exposure, a consistent schedule, limiting caffeine and alcohol, limiting daytime naps, and reducing evening noise and clutter.. That is the whole definition. It is a timing pattern, not a diagnosis, not a separate condition, and not a stage of its own — which is worth knowing, because a great deal of the internet treats it as all three.

What it is not:

• Not deliberate. Nobody chooses this, and it is not aimed at you even when it is directed at you.
• Not a personality change. The person who is gentle at ten in the morning and hostile at six in the evening is one person with a depleted brain, not two people.
• Not automatically medical. The most effective responses are environmental, and reaching for a prescription first tends to skip past cheaper things that work.
• Not permanent. It waxes and wanes across months, and often fades as the disease advances.

The part families rarely hear is that a sudden onset is a different animal from a gradual pattern. Sundowning that has crept in over weeks is sundowning. Confusion and agitation that arrive over a day or two, in someone who was not like this last Thursday, is a change in pace that does not match dementia and usually points somewhere else — infection, pain, dehydration, constipation, a new medication. The speed is the clue, and it is worth a phone call rather than a coping strategy.

Wandering: the middle stage's signature risk

Wandering is common in dementia and it is genuinely dangerous — that is the Alzheimer's Association's framing, and it is not a hedge 4Ref 4Alzheimer's Association (2024).Wandering.That wandering is common in dementia and can be dangerous; the specific home-safety measures named — deadbolts placed out of the sight-line, camouflaged doors, alarms, identification enrollment, and keeping a recent photograph; and the recommendation to call 911 if the person is not found within 15 minutes.. Federal guidance is equally direct that people with Alzheimer's may wander and become lost, and that caregivers can take specific measures to reduce the risk 5Ref 5National Institute on Aging (NIH) (2024).Coping With Alzheimer's Behaviors: Wandering and Getting Lost.Federal guidance that people with Alzheimer's may wander and become lost, and that caregivers can take specific safety measures to reduce that risk.. This is the behavior most likely to end a family's ability to manage at home, and it is the one that carries a real chance of death.

What makes dementia wandering difficult is that it is rarely aimless. Most of it has an internal logic that is perfectly coherent from the inside: going to work at a job that ended in 1994, collecting children who are now in their fifties, going home from a house they have lived in for thirty years. Understanding the errand is often what lets you redirect it, because you can answer the errand instead of arguing about the address.

The measures the Alzheimer's Association names are concrete rather than vague 4Ref 4Alzheimer's Association (2024).Wandering.That wandering is common in dementia and can be dangerous; the specific home-safety measures named — deadbolts placed out of the sight-line, camouflaged doors, alarms, identification enrollment, and keeping a recent photograph; and the recommendation to call 911 if the person is not found within 15 minutes.:

• Deadbolts out of the sight-line — mounted high or low, outside the band of vision where a hand goes looking
• Doors camouflaged — a curtain, a painted panel, something that stops reading as an exit
• Alarms — on doors, on the bed, anything that makes leaving audible at 3am
• ID enrollment — a wandering-response or identification program, arranged before it is needed
• A recent photograph — current, full-face, on your phone right now, because "recent" means recent to a searcher, not to you

That last one is the item everyone skips and the one that matters at the worst moment. The photo you love is nine years old. The photo a search team needs is from this month, showing what your parent looks like now, including how they are dressed on an ordinary day.

The fifteen-minute rule

If a person with dementia is missing and you have not found them within fifteen minutes, call 911. That is the Alzheimer's Association's recommendation, and it is the single most important sentence on this page 4Ref 4Alzheimer's Association (2024).Wandering.That wandering is common in dementia and can be dangerous; the specific home-safety measures named — deadbolts placed out of the sight-line, camouflaged doors, alarms, identification enrollment, and keeping a recent photograph; and the recommendation to call 911 if the person is not found within 15 minutes.. Fifteen minutes. Not an hour of driving the neighborhood first, not after you have called every sibling, not once you are certain rather than merely worried.

The reason families hesitate is always the same, and it is always understandable: embarrassment. The fear of wasting responders' time, of overreacting, of being the person who called out a search and then found their mother in the garage. So it is worth saying plainly that this is not a waste of anyone's time. It is precisely what the number is for, and there is no penalty for the call that turns out to be unnecessary. What there is a penalty for is the other one.

Worth having ready before it ever happens:

• The current photo, on your phone, and on the phone of whoever else might be the one to call.
• What they are wearing today. Check in the morning if it is on your mind. You will not remember under stress.
• The three or four places their errand would take them. Old addresses, old workplaces, a church, a route they walked for decades.
• The ID enrollment already done, not started the night of.

Nobody has ever been criticized for calling 911 fifteen minutes into a search for a person with dementia. The call is the plan, and it is free to make.

Aggression is almost always communication

Aggression in dementia is nearly always an unmet need being expressed by someone who has lost the ability to express it any other way, and reading it that way changes what you do about it. Federal caregiver guidance approaches dementia-related behaviors as things to be managed by understanding and adjusting the situation around them rather than by confronting the person 6Ref 6National Institute on Aging / Alzheimers.gov (HHS) (2023).Tips for Caregivers and Families of People With Dementia.Federal caregiver guidance on managing dementia-related behaviors by understanding and adjusting the surrounding situation rather than confronting the person., and agitation appears in the same moderate-stage territory as wandering in the federal descriptions 1Ref 1National Institute on Aging (NIH) (2024).What Are the Signs of Alzheimer's Disease?.That the moderate stage of Alzheimer's may bring wandering — particularly in the late afternoon and evening — along with agitation and greater supervision needs, and that the disease is described as progressing through preclinical, mild, moderate, and severe stages..

The question that helps is not why are they being aggressive but what is this person trying to tell me that they cannot say. The answer is usually on a short list:

• Pain. The most under-recognized cause by a wide margin. A person who cannot report a toothache, a full bladder, an arthritic hip, or a pressure sore may express it by hitting.
• Fear. Personal care is the classic trigger. From the inside, being undressed in a bathroom by a person you do not recognize is not care. It is an assault, and fighting back is a proportionate response.
• Overload. Too many people, a television, a question requiring a decision.
• Being corrected. Repeatedly told they are wrong about their own reality.
• Speed. Being moved faster than a damaged brain can process what is happening.

What tends to lower the temperature: approach from the front and in view, one voice at a time, announce before you touch, slow everything down, back off and return in ten minutes rather than winning now. Almost nothing is so urgent that it cannot wait a quarter of an hour, and a bath that happens at seven instead of six-thirty has cost nobody anything.

When dementia aggression is escalating rather than episodic, that is a clinical conversation and not a coping problem. Pain in particular is treatable, and treating it resolves more behavior than most families expect.

A rough map of behavior across the arc

Behavior does not track stages neatly, and this table is a tendency rather than a rule — people arrive early, skip things entirely, and do them out of order. What it captures is the shape families report most often, built on the three-stage framing 2Ref 2Alzheimer's Association (2024).Stages of Alzheimer's.The three broad stages of Alzheimer's — early with retained independence, middle with increasing help needed and growing confusion including wandering, and late with loss of communication and full dependence — used here as the frame for the behavior-by-stage table. and the federal stage descriptions that place wandering and agitation in the moderate stretch 1Ref 1National Institute on Aging (NIH) (2024).What Are the Signs of Alzheimer's Disease?.That the moderate stage of Alzheimer's may bring wandering — particularly in the late afternoon and evening — along with agitation and greater supervision needs, and that the disease is described as progressing through preclinical, mild, moderate, and severe stages..

The pattern in that last row deserves a plain reading. These behaviors fade in late-stage dementia because the person can no longer perform them, not because anything got better. Families sometimes describe the late stage as "easier," and in one narrow sense it is — the nights stop being a chase. It is not easier. The work has become physical, and the person who was fighting you at the bathroom door is now someone who cannot turn themselves over.

One note on vocabulary: the clinical instruments that describe this arc use numbers rather than words, and the FAST scale is the one most likely to come up once a hospice conversation starts. It stages function, not behavior, which is exactly why a page about behavior cannot tell you a stage.

What actually helps in the evening

The interventions with the best track record are unglamorous, environmental, and free. The National Institute on Aging's suggestions for sundowning are: get light exposure during the day, hold a consistent daily schedule, limit caffeine and alcohol, keep daytime napping under control, and cut noise and clutter in the evening 3Ref 3National Institute on Aging (NIH) (2024).Coping With Agitation, Aggression, and Sundowning in Alzheimer's Disease.The definition of sundowning as restlessness, agitation, irritability, or confusion that begins or worsens as daylight fades, and the NIA's management tips: daytime light exposure, a consistent schedule, limiting caffeine and alcohol, limiting daytime naps, and reducing evening noise and clutter.. That is a list nobody wants, because it looks too simple to work against something that feels this large. It works more often than families expect.

The way to think about it: by four in the afternoon, a person with dementia has spent all day doing hard cognitive work — interpreting rooms, decoding faces, tracking conversations. They are running on empty in a house that is getting harder to read as the light drops and the shadows lengthen. So the design principle is to make the last four hours of the day ask the least.

In practice:

• Lamps on before dusk, not after. Chasing the confusion is worse than preventing the shadows.
• Load the day at the front. Appointments, bathing, visitors, the pharmacy — all before two.
• Nothing that demands a decision after four. No questions with options. Declaratives instead.
• One conversation in the room. The television counts as a second person, and it is a person nobody can follow.
• Same order, every night. The sequence itself does the reassuring when memory cannot.
• A job to do. Folding, sorting, sweeping. Purposeful motion beats being asked to sit still while restless.

Those are the bones of how to handle sundowning at home. Where paid help is in the picture, this is also the shift worth staffing: sundowning care at home is far more useful at five in the evening than at ten in the morning, and most families buy the hours backwards.

The three environmental levers with the most support are light during the day, a consistent schedule, and a quieter evening 3Ref 3National Institute on Aging (NIH) (2024).Coping With Agitation, Aggression, and Sundowning in Alzheimer's Disease.The definition of sundowning as restlessness, agitation, irritability, or confusion that begins or worsens as daylight fades, and the NIA's management tips: daytime light exposure, a consistent schedule, limiting caffeine and alcohol, limiting daytime naps, and reducing evening noise and clutter..

When behavior means the setting has to change

There is a line, and it is not about how difficult the behavior is. It is about whether the risk can be contained where the person currently lives, and it is worth deciding in advance rather than in the aftermath. Federal descriptions are direct that greater supervision becomes necessary in the moderate stage 1Ref 1National Institute on Aging (NIH) (2024).What Are the Signs of Alzheimer's Disease?.That the moderate stage of Alzheimer's may bring wandering — particularly in the late afternoon and evening — along with agitation and greater supervision needs, and that the disease is described as progressing through preclinical, mild, moderate, and severe stages., and supervision is the word doing the work: not care, not attention — supervision, which means eyes, at every hour, including the hours you are asleep.

Signs the setting has been outgrown rather than the family having failed:

• Elopement has happened once. Not nearly. Actually left, and was returned by someone else.
• The nights are gone. The primary caregiver has not slept through a night in months, which is a safety problem for two people rather than one.
• Aggression has caused an injury, to anyone, including the person themselves.
• The locks are load-bearing. The plan depends entirely on hardware and on one exhausted person hearing an alarm.
• Care is being refused, so that bathing, eating, or medication is not reliably happening.

Any one of those is a reason to look at the memory care threshold seriously, and the specific criteria have their own page here. What belongs on this one is the reframe: moving someone is not a moral failure and it is not abandonment. A locked, purpose-built environment with staff who rotate off shift can hold risk that a house and one daughter cannot, and it is not close. The comparison is not you versus a facility. It is a person watched by someone rested versus a person watched by someone who has not slept since March.

Reaching the limit of what a house can hold is a fact about the house and the disease. It is not a verdict on how much you love them.