Managing Sundowning: Evening Confusion and Agitation in Dementia

If a parent with dementia seems noticeably more confused, restless, or agitated in the late afternoon and evening than earlier in the day, you're likely seeing what's known as sundowning. It's a common and exhausting pattern for families, but understanding why it happens makes it easier to respond calmly and reduce how often it occurs.

What Sundowning Actually Is

Sundowning refers to a pattern of increased confusion, restlessness, anxiety, or agitation that shows up in the late afternoon or evening in people with dementia. It isn't a separate condition, it's a symptom pattern tied to the underlying dementia, and it can range from mild irritability to genuine distress or disorientation about where they are or what time it is. It tends to ease once they're asleep, though it can also disrupt sleep itself.

What Might Be Causing It

The exact cause isn't fully understood, but a few things seem to play a role: fatigue building up over the day, changing light levels confusing the body's internal clock, hunger or thirst going unnoticed, disrupted sleep the night before, and simply too much stimulation or too little routine as the day winds down. It's rarely caused by one single thing, which is why a combination of small adjustments usually works better than one big fix.

Adjusting the Environment

Keeping the home well-lit in the late afternoon, before it actually gets dark, can help reduce the confusion that comes with fading natural light and long shadows. Closing curtains before dusk to avoid the disorienting effect of a darkening window, and keeping evening spaces calm and free of clutter, both help. Reducing background noise from the television or a busy household in the evening, and avoiding new or overstimulating activities late in the day, can also make a real difference.

Building a Calming Evening Routine

A predictable, low-key routine in the evening tends to reduce agitation over time. Try to keep dinner, bathing, and bedtime at consistent times each day. A short walk or some gentle activity earlier in the afternoon can help reduce restlessness later, while caffeine and heavy meals in the evening are worth limiting. Familiar, calming activities, quiet music, a favourite chair, a warm drink, can help signal that it's time to wind down.

How to Respond in the Moment

When agitation does happen, try not to argue or reason extensively, dementia-related confusion usually doesn't respond well to logic in the moment. A calm, reassuring tone, gentle redirection to a different activity, and simple, short sentences tend to help more than explanations. If your parent seems to be looking for someone or something from the past, gently acknowledging their feelings, rather than correcting the facts, is often the kinder and more effective approach. Give them space if they need it, but stay nearby and keep the environment safe.

When to Talk to a Doctor

If sundowning is severe, involves aggression, or is getting noticeably worse over time, it's worth discussing with your parent's doctor. Pain, a urinary tract infection, medication side effects, or other underlying medical issues can worsen confusion and agitation and are worth ruling out rather than assuming it's simply part of the dementia. A doctor may also be able to suggest adjustments to routine, environment, or in some cases medication that can help.

Frequently Asked Questions

Sundowning can be one of the more draining parts of caring for a parent with dementia, but small, consistent adjustments to light, routine, and environment genuinely help most families. Our guide to creating a dementia-friendly home environment covers more ways to reduce confusion and disorientation throughout the day, and our guide to communicating with a parent who has dementia has more on responding calmly in difficult moments.