Sundowning: Why It Happens and What Actually Helps

If your loved one seems noticeably more confused, restless, or agitated every evening like clockwork, you're not imagining a pattern — you're watching sundowning, one of the most common and most disruptive parts of caring for someone with dementia.

What Sundowning Actually Is

Sundowning is a pattern of worsening confusion, agitation, anxiety, or restlessness that shows up in the late afternoon or evening in people with dementia. It's not a separate diagnosis — it's a set of behaviors, most likely tied to disruption in the brain's internal clock, the same system that normally regulates when we feel awake versus sleepy. Estimates of how common it is vary widely by study, but it's a well-recognized part of dementia care, not something unusual about your specific situation.

What Seems to Trigger It

The exact cause isn't fully understood, but a few contributing factors show up consistently: physical and mental exhaustion after a full day, increasing shadows and changing light as the sun goes down, disruption to the sleep-wake cycle itself, and sometimes an underlying illness or infection that's easy to miss. It tends to become more noticeable in the middle-to-later stages of dementia rather than the very earliest ones.

What Actually Helps — Non-Drug Strategies First

Most care teams recommend starting with environmental and routine changes before considering medication:

• Keep a consistent daily schedule — waking, meals, and bedtime at roughly the same time each day reduces confusion.
• Front-load stimulating activities and appointments into the morning, when someone with dementia is typically more alert, rather than the afternoon or evening.
• Manage evening light deliberately — bright, even lighting as it gets dark outside, rather than growing shadows and dim rooms, which can worsen confusion and anxiety.
• Reduce evening stimulation — limiting loud noise, bright screens, and hectic activity as bedtime approaches.
• Watch caffeine, sugar, and alcohol later in the day — all three can worsen agitation and disrupt sleep further.
• Encourage gentle activity earlier in the day so physical tiredness doesn't compound with sundowning-related restlessness at night.

Medication is generally considered only after these approaches, and only in consultation with a physician — it's not usually the first tool reached for.

When to Loop In a Doctor

If sundowning is severe, sudden in onset, or paired with other new symptoms, it's worth ruling out something else going on — an infection (urinary tract infections are a common, easy-to-miss culprit in older adults) can look a lot like a sundowning episode. A new or dramatically worsening pattern is worth a call to the doctor, not just something to manage alone.

How Interim Can Help

Evenings are often the hardest stretch of the day for a family caregiver — right when everyone's own energy is lowest. We're a non-medical home care agency, and evening or overnight coverage from a trained Care Professional is one of the most common reasons families reach out to us specifically around sundowning.

Our 7th Week Guarantee

No long contracts. If you don't feel the difference after six weeks of care at 20 or more hours a week, your seventh week is free.

Get Started

Call us at (801) 401-3515 if evenings have become the hardest part of your day. We'll talk through what support could look like.

Learn more about our dementia care services, respite care for family caregivers, or the timeline of dementia stages.