What Is Sundowning? Understanding Late-Day Confusion in Dementia

As the day comes to an end, many families notice a change in their loved one.

Someone who seemed calm that morning may suddenly become restless, confused, anxious, or agitated. They may begin pacing the house, asking to "go home," or insisting they need to leave.

These changes can be upsetting for everyone involved.

This behavior is commonly known as sundowning, and it affects many individuals living with Alzheimer's disease, dementia, Lewy body dementia, vascular dementia, Parkinson's disease dementia, and other memory-related conditions.

Understanding why it happens can help families respond with patience, compassion, and confidence.

What Is Sundowning?

Sundowning refers to increased confusion, anxiety, restlessness, or behavioral changes that often occur during the late afternoon or evening.

While researchers don't know exactly what causes sundowning, it is believed to result from changes in the brain combined with fatigue, overstimulation, and disruptions to the body's natural sleep-wake cycle.

Not everyone living with dementia experiences sundowning, but it is common enough that many caregivers eventually recognize the pattern.

Common Signs of Sundowning

Every person experiences dementia differently, but families often notice:

• Increased confusion late in the day

• Restlessness or pacing

• Anxiety or fear

• Irritability

• Difficulty sleeping

• Repeated questions

• Wanting to leave home

• Emotional outbursts

• Hallucinations in some forms of dementia

  
  

These behaviors are not intentional.

They are symptoms of changes occurring within the brain.

Why Does It Happen?

Several factors may contribute to sundowning.

As the day progresses, individuals living with dementia often become mentally and physically tired. Changes in lighting can create shadows that increase confusion, while busy evening routines may become overwhelming.

Other contributing factors may include:

• Hunger or dehydration

• Pain or discomfort

• Changes in routine

• Overstimulation

• Lack of sleep

• Medication timing

  
  

Recognizing these triggers can help families reduce stress for both the caregiver and their loved one.

What Families Can Do at Home

Although sundowning cannot always be prevented, a few simple strategies may help.

Try to:

• Keep a consistent daily routine.

• Encourage activity earlier in the day.

• Limit afternoon caffeine.

• Reduce noise and distractions during the evening.

• Keep rooms well lit as daylight fades.

• Offer reassurance instead of correction.

• Create a calm and familiar environment.

  
  

Above all, remember that arguing rarely helps.

When someone is living with dementia, validation and reassurance are often far more effective than trying to convince them they are wrong.

When Sundowning Becomes a Safety Concern

For some families, sundowning becomes more than an evening inconvenience.

Repeated wandering, aggressive behavior, falls, sleepless nights, or increasing caregiver exhaustion may indicate that additional support is needed.

If the emotional and physical demands of caregiving are becoming overwhelming, you may also find our article Caregiver Burnout Doesn't Usually Happen All at Once helpful.

A doctor's assessment can help rule out medical concerns that may be contributing to behavioral changes. If symptoms continue to progress, families may also begin exploring memory care or long-term care options that provide structured routines, secured environments, and trained caregivers.

The goal is not simply to manage behaviors.

It is to improve comfort, safety, and quality of life for everyone involved.

How Memory Care Helps

Memory care communities are designed with routines that support individuals experiencing cognitive changes throughout the day.

If you're beginning to wonder whether additional support may be appropriate, read Assisted Living vs. Memory Care: What's the Difference? to better understand your options.

Consistent schedules, familiar surroundings, trained staff, meaningful activities, and a calm environment can help reduce stress while promoting wellness and engagement.

Every resident's needs are different, but having a compassionate team available around the clock provides reassurance for both residents and families.

You Are Not Alone

Watching a loved one change in the evening can be heartbreaking.

Many families question whether they are doing something wrong.

The truth is, sundowning is a common part of many dementia journeys, and you do not have to navigate it by yourself.

With the right support, education, and care, families can better understand these behaviors while helping their loved ones remain safe, comfortable, and connected.