What Is Sundowning in Dementia
6 min read

What Is Sundowning in Dementia? Tips and Support for Families in North London

Caring for a loved one with dementia brings many challenges — and one of the most distressing for families is sundowning. If your relative becomes more confused, restless or agitated as the day draws to a close, you are not alone. Sundowning in dementia is extremely common, and with the right understanding and support in place, it can be managed far more effectively.

At Visiting Angels North London, our carers work with families across Camden, Highgate, Hampstead, Islington, Crouch End and Finchley to provide specialist dementia home care. This guide explains what sundowning is, why it happens, and what you can do to help.

What Is Sundowning?

Sundowning — sometimes called sundowner syndrome or sundowning syndrome — refers to a pattern of increased confusion, agitation and distress that occurs in the late afternoon or evening in people living with dementia. It is one of the more recognisable dementia symptoms, affecting a significant proportion of people with Alzheimer’s disease and other forms of dementia.

The term comes from the association with the setting sun: as daylight fades, many people with dementia experience a worsening of their symptoms.

Common signs of sundowning include:

  • Increased restlessness or pacing
  • Irritability, agitation or sudden mood changes
  • Disorientation and confusion about where they are or what time it is
  • Difficulty communicating needs
  • Night-time wandering or disrupted sleep

These behaviours can emerge quite suddenly and may be alarming the first time you witness them. Understanding that it is a recognised feature of dementia — not a sign that something has gone acutely wrong — can help families feel less frightened and more equipped to respond.

What Stage of Dementia Is Sundowning?

Sundowning is most commonly associated with the middle stages of dementia, though it can occur at other points too. It tends to become more pronounced as the condition progresses and the brain has greater difficulty regulating the body’s internal clock and processing sensory information.

If you have noticed a sudden worsening of dementia symptoms in the late afternoon, it is worth speaking to your GP or a dementia specialist to rule out any underlying medical causes — such as a urinary tract infection, pain or dehydration — which can also trigger episodes.

For a detailed clinical overview, Dementia UK’s sundowning guide is an excellent resource.

Why Does Sundowning Happen?

The exact causes of sundowning in dementia are not fully understood, but research points to several contributing factors:

Disrupted circadian rhythms. Dementia affects the part of the brain that regulates the body clock, making it harder for a person to distinguish between day and night.

Fatigue and sensory overload. By late afternoon, a person with dementia may have reached the limits of their mental and physical capacity for the day. That tiredness can trigger more pronounced symptoms.

Reduced light. As natural light fades, it becomes harder for someone with dementia to orientate themselves. Shadows and low lighting can increase confusion significantly.

Unmet physical needs. Hunger, thirst, constipation or pain can all worsen dementia symptoms and contribute to sundowning episodes.

Disrupted sleep patterns. Poor sleep overnight can compound the problem, creating a cycle that becomes harder to break without consistent support.

Practical Tips for Managing Sundowning at Home

If you are caring for an elderly relative experiencing sundowning, the following strategies can make a meaningful difference.

1. Keep to a Consistent Daily Routine

Structure is reassuring for people with dementia. Try to maintain regular times for meals, activities, personal care and bedtime. Predictability reduces the anxiety that can contribute to sundowning episodes.

2. Encourage Activity During the Day

Gentle physical activity — a short walk, some light housework, or a seated exercise session — earlier in the day can help promote better sleep at night and reduce restlessness in the evenings. Avoid stimulating activities in the late afternoon.

3. Manage the Evening Environment Carefully

Before sunset, close blinds or curtains, turn on warm indoor lighting, and reduce background noise such as the television. Creating a calm, familiar environment can significantly reduce confusion as natural light fades.

4. Look for Patterns and Triggers

Keep a brief diary of when sundowning episodes occur and what preceded them. Over time, patterns often emerge — whether that’s a particular activity, a missed meal, or a noisy environment — allowing you to anticipate and avoid triggers.

5. Respond with Calm and Reassurance

During a sundowning episode, stay calm. Avoid arguing or trying to correct the person’s perception of reality. A gentle tone, simple reassurances and a familiar face can help de-escalate agitation more effectively than logical explanation.

6. Consider Practical Aids

Motion-sensor nightlights in hallways and bathrooms can reduce disorientation if your loved one wakes during the night. Clocks with large, clear displays showing the time of day can also help with orientation.

 

How Professional Home Care Can Help

Managing sundowning as a family carer — particularly alone — is exhausting. The late afternoon and early evening timing means it often falls at the most demanding part of the day, just when your own energy is at its lowest.

Professional home care for the elderly can make a significant difference. A regular, familiar carer who understands your loved one’s patterns and preferences can step in during the most challenging hours, providing both practical support and companionship.

At Visiting Angels North London, we provide specialist dementia home care tailored to each individual. Our approach centres on carefully matching clients with the right carer — someone they feel comfortable with and can build a genuine relationship with over time. Consistency matters enormously in dementia care, and it is central to how we work.

We support families across North London including Camden, Hampstead, Highgate, Islington, Crouch End, Finchley and the surrounding areas.

Frequently Asked Questions About Sundowning

What is sundowning in dementia?

Sundowning is a pattern of increased confusion, agitation or restlessness that occurs in people with dementia during the late afternoon or evening. It is a recognised symptom rather than a separate condition.

What causes sundowning behaviour?

Contributing factors include disrupted body clocks, fatigue, reduced light, unmet physical needs and disrupted sleep. The exact cause varies between individuals.

Can sundowning be managed at home?

Yes, in many cases. A consistent routine, a calm evening environment, regular activity during the day, and professional carer support can all help to reduce the frequency and severity of episodes.

When should I seek extra help?

If sundowning episodes are becoming more frequent, more distressing, or if they are affecting your own health and wellbeing as a carer, it is time to consider additional support. Reaching out early means you can put the right care in place before crisis point.

 

Talk to Visiting Angels North London

If your family is struggling with sundowning or other aspects of dementia care at home, we are here to help. Our team can talk you through the options, answer your questions and arrange a no-obligation home visit.

Call us on 020 8059 4187 or visit visiting-angels.co.uk/northlondon

 

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