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♥ Helping Someone with Dementia Sleep Better
Gentle strategies for calmer nights — for both of you.
Quick answer: Poor sleep in dementia is usually about a disrupted body clock, not defiance or habit. Keep daytime bright and active, evenings calm and dim, avoid long or late naps, and build a short, predictable bedtime routine. Rule out simple causes first — thirst, needing the toilet, pain, or an uncomfortable room temperature.
Why it happens
Dementia can damage the part of the brain that regulates our internal body clock, making it genuinely harder for someone to sense when it's day or night. Add in reduced activity levels, less exposure to natural light, and the confusion of an unfamiliar-feeling evening, and it's easy to see why sleep becomes so unpredictable.
Sundowning — increased restlessness or agitation in the late afternoon and evening — often makes the run-up to bedtime harder too, since the person may already feel anxious or unsettled before you've even started winding down for the night.
Practical ways to improve sleep
- Get outside or near a bright window in the morning — natural light helps reset the body clock.
- Keep daytime activity levels up where possible, even gentle movement like a short walk.
- Limit naps to 20-30 minutes, earlier in the day rather than late afternoon.
- Dim the lights and lower noise levels in the couple of hours before bed.
- Build a short, consistent bedtime routine — same steps, same order, every night.
- Avoid caffeine after lunchtime.
- Check the room temperature — too warm or too cold can cause restlessness that looks like agitation.
- Use a nightlight rather than total darkness, which can be disorienting on waking.
- Rule out simple physical causes first: thirst, needing the toilet, or pain.
- Keep the sleep environment familiar — same bed, same room, same bedding where possible.
- Use motion-sensor lights along the path to the bathroom, so a night waking doesn't turn into a fall risk.
- Avoid stimulating television or activities right before bed.
- If they wake and are convinced it's daytime, gently reorient rather than argue: "It's still nighttime, let's go back to bed together."
- Keep your own reactions calm during night wakings — anxiety in your voice can increase theirs.
- Talk to their GP if sleep problems are severe or sudden, since some medications or infections can also disrupt sleep.
"For months I thought the only answer was to just get less sleep myself. What actually helped was realising she woke at almost exactly the same time every night — she was thirsty. Once I started leaving a small covered cup of water right by the bed, in reach without her needing to get up, those particular wakings almost stopped." — from a live-in carer's experience
Common mistakes to avoid
- Arguing about what time it is — this rarely helps and can increase distress.
- Allowing long, late-afternoon naps that then make nighttime sleep harder.
- Bright overhead lighting in the evening, which works against the body's natural wind-down.
- Assuming restlessness is just "how they are" without checking for pain, thirst, or discomfort first.
- Changing the bedtime routine frequently, which removes a helpful sense of predictability.
Frequently asked questions
Why does someone with dementia wake up so much at night?
Dementia can disrupt the body's internal clock, making it harder to distinguish day from night. Discomfort, needing the toilet, or confusion about where they are can also cause frequent waking.
What is sundowning and how is it related to sleep?
Sundowning is increased confusion, agitation, or restlessness in the late afternoon and evening. It often makes settling to sleep harder, since the person is already more anxious as bedtime approaches.
Should someone with dementia nap during the day?
A short nap (20-30 minutes) earlier in the day is usually fine, but long or late-afternoon naps often make nighttime sleep worse. Keeping naps brief and early helps protect nighttime rest.
Does light exposure affect sleep in dementia?
Yes, significantly. Bright natural light in the morning and dim lighting in the evening help reinforce the body's sense of day and night, which dementia often disrupts.
Is it safe to use sleep medication for someone with dementia?
This should always be discussed with their doctor first, since some sleep medications carry higher risks (like falls or increased confusion) for people with dementia specifically.
What should I do if someone with dementia gets up and wanders at night?
Stay calm, gently guide them back rather than arguing about the time, and check for an unmet need first — thirst, needing the toilet, or pain are common causes. Motion-sensor lights can help them see safely if they do get up.
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About Violetta
Violetta is a live-in carer with over ten years of experience and the founder of Care Games Co, creating dementia-friendly digital tools that help carers and families connect.