As fall approaches and daylight hours begin to shorten, many families look forward to cooler temperatures, changing leaves, and familiar seasonal traditions. For older adults living with dementia, however, the transition into fall and winter can bring challenges that families may not immediately connect to the changing season. Earlier sunsets, darker afternoons, disrupted routines, and less exposure to natural light can all influence mood, sleep, orientation, and behavior.

These changes can be particularly noticeable in people who experience sundowning, a term commonly used to describe increased confusion, agitation, restlessness, or anxiety that occurs later in the day. While sundowning can happen throughout the year, seasonal changes may make the late afternoon and evening hours more difficult for some individuals with dementia. Understanding what may be happening can help families make practical adjustments to the home environment and daily routine.

Why Earlier Darkness Can Be Confusing

People living with Alzheimer’s disease and other forms of dementia often depend heavily on environmental cues to understand where they are and what time of day it is. Morning sunlight, activity around the home, mealtimes, familiar television programs, and the gradual transition from daylight to evening can all help provide structure. When daylight begins disappearing earlier, some of those cues become less reliable.

A person who is accustomed to seeing daylight at 6:00 p.m. may suddenly look outside at that same hour and see darkness. To someone already having difficulty understanding time, that change can be surprisingly disorienting. The person may believe it is much later than it actually is, wonder why they have not gone to bed, or become convinced that something about the day is wrong.

Dementia can also make it difficult to reason through an explanation such as, “It gets dark earlier now because it’s fall.” Even if the person understands the explanation momentarily, they may not remember it later. Families can find themselves answering the same questions repeatedly as their loved one attempts to make sense of an environment that suddenly feels different.

Understanding Sundowning

Sundowning is not a disease itself, nor does everyone with dementia experience it. It describes a pattern of symptoms that may emerge or become more noticeable during the late afternoon and evening. A person may become restless, confused, suspicious, irritable, frightened, or increasingly determined to leave the house.

Some individuals begin pacing or repeatedly asking to “go home,” even when they are already home. Others may become more argumentative, follow a caregiver from room to room, call out for people from their past, or insist they need to leave for work or pick up children who are now adults. These behaviors can be extremely difficult for families, particularly when they occur at the end of an already demanding day.

Researchers do not attribute sundowning to one single cause. Fatigue, disrupted sleep-wake cycles, changes in the body’s internal clock, overstimulation, unmet physical needs, medication effects, and reduced lighting may all play a role. Because several factors can overlap, families often need to experiment with routines and environmental changes to discover what helps their loved one.

The Importance of Natural Light

Light plays an important role in regulating the body’s circadian rhythm, the internal system that helps determine when we feel awake and when we become sleepy. Dementia can already interfere with normal sleep patterns, and reduced daylight during fall and winter may further complicate the body’s ability to distinguish between daytime and nighttime.

Whenever possible, encourage exposure to natural light earlier in the day. Opening curtains and blinds in the morning can help signal that the day has begun. Sitting near a bright window during breakfast, spending some time outside when weather permits, or taking a morning or early afternoon walk can provide both light exposure and physical activity.

Families should also pay attention to rooms that become noticeably darker as fall progresses. A living room that seemed bright throughout the summer may become shadowy by late afternoon in October or November. Turning lights on before the room becomes dark can create a smoother transition and may prevent the sudden environmental change that can contribute to confusion.

Shadows Can Become Frightening

Dementia can affect visual perception as well as memory. A person may have difficulty interpreting shadows, reflections, patterns, or objects in dimly lit spaces. As daylight fades earlier, ordinary items around the home can begin to look unfamiliar or even threatening.

A coat hanging on a chair might appear to be a person. A reflection in a dark window may be mistaken for a stranger outside. Shadows from furniture can create shapes that the person does not recognize, while a hallway that is perfectly familiar during the day may suddenly seem frightening when it is poorly lit.

Good lighting throughout the home becomes especially important during the darker months. Hallways, bathrooms, stairways, entrances, and frequently used rooms should be easy to see without harsh glare. Nightlights can also help someone safely navigate the home if they wake during the night.

Maintain a Predictable Daily Routine

Routine is enormously valuable for many people living with dementia. When memory becomes unreliable, repetition can provide a sense of security. Meals, bathing, medications, activities, relaxation, and bedtime occurring at approximately the same times each day can make the environment feel more predictable.

The seasonal clock change can disrupt that predictability. A person may become hungry earlier, sleepy earlier, or confused because familiar activities seem to be happening at the wrong time. Rather than making dramatic changes to the schedule, families may find that gradual adjustments are easier to tolerate.

Try to keep morning and daytime routines particularly consistent during the weeks surrounding the time change. Familiar activities and predictable schedules can provide reassurance even when the amount of daylight outside is changing. Maintaining structure does not mean every minute of the day must be scheduled, but recognizable patterns can reduce unnecessary uncertainty.

Plan Activities Earlier in the Day

If late afternoon tends to be a difficult time, schedule more demanding activities earlier whenever possible. Medical appointments, shopping trips, bathing, visitors, and other potentially tiring activities may be easier during the morning or early afternoon when the person is more rested and alert.

Physical activity during the day can also be beneficial. Depending on the person’s abilities, this might include walking, gardening, chair exercises, folding laundry, helping prepare a meal, or participating in an activity program. The goal is not to exhaust the person but to provide meaningful engagement and appropriate stimulation.

Late afternoon can then become a quieter transition period. Soft music, a familiar television program, looking through photographs, doing a simple puzzle, or having a light snack may help create a calm atmosphere. Families often discover that reducing demands during this part of the day is more effective than trying to reason someone out of increasing confusion.

Watch for Hunger, Pain, and Other Unmet Needs

Behavioral changes in someone with dementia should not automatically be attributed to dementia. A person who cannot clearly explain what is wrong may communicate discomfort through agitation, pacing, resistance, or changes in behavior. Hunger, thirst, constipation, pain, fatigue, needing the bathroom, or feeling too hot or cold can all contribute to distress.

This becomes especially important when a new behavior appears suddenly or becomes significantly worse. Infections, medication changes, dehydration, sleep problems, and other medical conditions can cause increased confusion in older adults. A sudden or substantial change in mental status should be discussed with an appropriate healthcare professional rather than simply assumed to be sundowning.

Families can also keep notes about when difficult behaviors occur. Patterns sometimes emerge that are difficult to recognize in the moment. If agitation repeatedly begins before dinner, after a certain medication, following busy outings, or as a particular room becomes dark, that information may help identify changes that could make evenings easier.

Be Mindful of Evening Stimulation

Television can be comforting for some people with dementia, but it can also become overstimulating or confusing. News programs, crime shows, arguments, loud commercials, or rapidly changing images may be interpreted as events occurring inside the home. Someone who can no longer reliably separate television from reality may become frightened by something other family members consider ordinary entertainment.

The same principle applies to a busy household. Multiple conversations, ringing phones, visitors, pets, television, and dinner preparation happening simultaneously may be overwhelming when the person’s ability to process information is already reduced. Creating a quieter environment as evening approaches can sometimes decrease agitation.

Families do not need to make the home silent. Instead, think about creating a calmer rhythm. Familiar music, softer voices, comfortable lighting, and simple activities can communicate that the day is winding down without abruptly signaling that it is time for bed.

Sleep Problems Can Affect the Entire Household

Dementia frequently affects sleep, and disrupted nights can become one of the most exhausting aspects of caregiving. A person may sleep frequently during the day and then remain awake at night, wake repeatedly, wander through the home, or become convinced that morning has arrived at 2:00 a.m. Earlier darkness can make maintaining a normal day-night distinction even more challenging.

Families may be tempted to encourage long daytime naps because both the caregiver and the person with dementia are tired. While short periods of rest may be appropriate, excessive daytime sleeping can sometimes make nighttime sleep more difficult. Daytime activity, exposure to natural light, and a consistent bedtime routine may help reinforce the difference between day and night.

Persistent sleep problems should be discussed with the person’s healthcare provider. Medications, sleep disorders, pain, depression, urinary problems, and other health conditions may contribute to nighttime waking. Families should avoid assuming that every sleep disturbance is simply an unavoidable part of dementia.

When “I Want to Go Home” Begins in the Evening

One of the most heartbreaking experiences for families is hearing a loved one repeatedly say that they want to go home when they are already sitting in their own house. In many cases, “home” may represent something more emotional than a physical address. The person may be searching for familiarity, safety, parents who died decades ago, or a home from an earlier period of life.

Correcting the person repeatedly may increase frustration. Telling someone, “This is your house. You’ve lived here for 30 years,” relies on reasoning and memory abilities that dementia may have impaired. Instead, responding to the emotion behind the statement can sometimes be more effective.

A caregiver might acknowledge that the person seems worried and then redirect attention toward something comforting or familiar. Looking at family photographs, offering a snack, moving into a brighter room, or beginning a favorite activity may help. The objective is not to prove the person wrong but to reduce the distress they are experiencing.

Fall Is a Good Time to Reassess Home Safety

The arrival of shorter days provides families with a natural opportunity to look at the home through the eyes of someone with dementia. Walk through the house in the late afternoon and evening rather than evaluating it only during daylight. Notice dark hallways, confusing reflections, poorly illuminated stairs, cluttered pathways, and exterior doors that become difficult to see after sunset.

Families should also consider wandering risk. If a person has begun attempting to leave the home, looking for deceased relatives, trying to “go to work,” or becoming increasingly restless in the evening, additional safety precautions may be necessary. Door alerts, appropriate monitoring systems, identification information, and a family response plan can provide additional protection.

Safety measures should still preserve as much dignity and independence as possible. Dementia care is not simply about preventing every possible risk. The goal is to create an environment in which the person can continue participating in daily life while reducing hazards that they may no longer recognize.

Caregivers Need Support Too

Sundowning and nighttime disturbances can be particularly difficult for family caregivers because they often occur when the caregiver is already physically and emotionally exhausted. Someone may spend the entire day assisting with meals, medications, appointments, personal care, and household responsibilities only to face several more hours of agitation in the evening.

Caregiver exhaustion is not something families should ignore. Respite care, adult day programs, home care, family assistance, support groups, and other community resources can give caregivers opportunities to rest. Accepting help is often an important part of sustaining care over the long term.

Families should also recognize when a loved one’s needs have exceeded what can safely and realistically be managed at home. Increasing wandering, repeated nighttime awakenings, significant behavioral changes, falls, medication problems, or a caregiver who can no longer get adequate sleep may signal that additional support is needed.

When Memory Care May Need to Be Considered

Moving someone with dementia is a major decision, and there is no single behavior that automatically means it is time for memory care. However, families should pay attention when safety concerns, nighttime behaviors, personal care needs, or caregiver exhaustion become increasingly difficult to manage.

Memory care communities are designed around the needs of people experiencing cognitive impairment. Structured routines, secured environments, trained staff, appropriate activities, and around-the-clock support can provide a different level of supervision than many families can reasonably provide at home. The right time to explore memory care depends on the individual, the progression of the disease, available family support, and the safety of the current living situation.

Families do not have to wait for a crisis before learning about their options. Touring communities while a loved one is still relatively stable gives everyone more time to ask questions, understand costs, compare environments, and make thoughtful decisions. Even if a move is not currently necessary, knowing what resources are available can make future decisions less overwhelming.

A Change in Season Can Be a Reminder to Pay Attention

Turning the clocks back may seem like a small event, but for someone living with dementia, the combination of earlier darkness, reduced natural light, disrupted routines, and changing environmental cues can have a meaningful effect. Families who notice increased late-day confusion or agitation should look at the entire picture rather than assuming the behavior is intentional or something the person can simply control.

Small adjustments such as improving lighting, maintaining consistent routines, increasing daytime activity, reducing evening stimulation, and watching for unmet physical needs can make the darker months more manageable. Just as importantly, families should remain alert to significant or sudden changes that deserve medical attention.

Dementia continually asks families to adapt as a loved one’s abilities and perceptions change. Fall provides another opportunity to observe what is working, identify what has become more difficult, and make changes that support safety, comfort, dignity, and quality of life throughout the months ahead.

Jennifer Carter, CDP
Founder, Star Light Senior Advisors
Published Author