What Causes Insomnia in Elderly Adults? A Guide for Ottawa Families
You call your mother at nine in the morning, and she sounds exhausted. She tells you that she woke up again at 3 a.m. and sat in the kitchen with the lights on. In the afternoon, she falls asleep in her armchair. At ten at night, she’s wide awake again.
If this sounds familiar, you’re not imagining a problem. At Comfort Keepers® In-Home Senior Care Ottawa and Kanata, we’ve noticed that sleep changes as we age, but a parent who can’t fall asleep, can’t stay asleep, or wakes up long before dawn isn’t simply “getting older.” There’s usually a reason behind it, and most causes of insomnia in older adults are treatable once you know what you’re dealing with.
How Many Hours of Sleep Does an Older Adult Really Need?
There is a widespread belief that older adults need much less sleep than younger adults. That is only partly true. Most adults over 65 still need about seven to eight hours a night. What changes is the structure of sleep: older adults spend less time in deep sleep, wake up more frequently during the night, and tend to feel sleepy earlier in the evening. So a parent who goes to bed at 8:30 p.m. and wakes up at 5:00 a.m. may be perfectly healthy. A parent who lies awake for two hours every night, or who wakes up four or five times and cannot get back to sleep, is dealing with a different problem.
The extent of the problem is greater than most families realize. Statistics Canada’s Canadian Health Measures Survey found that between 18.6% and 25.8% of Canadians aged 65 and older reported symptoms of nighttime insomnia, and among the adult population as a whole, most Canadians with insomnia symptoms had been living with them for more than a year.
This last detail is important. Insomnia in elderly adults rarely announces itself. It settles in quietly and becomes the new normal, often long before anyone in the family thinks to ask about it.
The Most Common Causes of Insomnia in Elderly Adults
In most cases there is no single culprit. The causes tend to stack: a sore hip, a diuretic taken at the wrong hour, and a dark February afternoon can add up to a broken night that none of them would have caused alone. These are the ones we see most often in Ottawa homes.
Pain and physical discomfort.
Arthritis, back pain, and joint stiffness are among the most common reasons older adults wake up during the night. Pain that is manageable while moving about during the day becomes much louder when the house is quiet.
Medications.
This is the cause that families most often overlook. Diuretics taken too late in the day, some blood pressure medications, corticosteroids, and certain antidepressants can all disrupt sleep. The same is true for over-the-counter products. If your parent takes several prescriptions, the timing of those doses is worth reviewing with a pharmacist.
The need to use the bathroom at night.
Frequent nighttime urination disrupts sleep and, just as importantly, increases the risk of falling in a dark hallway. Many older adults respond by drinking less in the evening, which can lead to dehydration rather than better sleep.
Sleep apnea.
Loud snoring, gasping, or long pauses in breathing are not just noisy habits. Sleep apnea is common among older adults and often goes undiagnosed, leaving people exhausted no matter how many hours they spend in bed.
Anxiety, grief, and low mood.
An older adult who has lost a spouse, stopped driving, or seen their social circle shrink often does their hardest thinking at night. Depression in older adults regularly shows up as waking early in the morning rather than as sadness.
Too little daylight and too little activity.
The body’s internal clock depends on light and movement. An Ottawa winter offers only a handful of daylight hours, and for an older adult who rarely leaves the house between December and March, that clock drifts badly. A day spent mostly in a chair sends the body very few signals about when the night is supposed to begin.
Caffeine and alcohol.
A glass of wine after dinner may bring on sleep quickly, then cause waking a few hours later. Afternoon coffee or tea lingers longer in an older body than it did decades ago.
When Changes in Sleep Are a Warning Sign
Most causes of insomnia in elderly adults are simply a nuisance. Sometimes, however, the change in sleep is a signal that warrants prompt attention:
- Sleeping most of the day, not just at night
- Confusion or agitation that intensifies in the late afternoon and evening
- Falling asleep in the middle of a conversation or a meal
- New episodes of nighttime wandering, or waking up disoriented about where they are
- A sudden change in sleep over days or weeks rather than months
Sudden changes in sleep may point to an infection, side effects from medication, or cognitive change, and they warrant a call to the family doctor rather than a wait-and-see approach.
A Word of Caution About Sleeping Pills
Many families turn to a sleep aid because it seems like the quickest solution. For older adults, sedatives carry real risks: drowsiness that lingers into the next day, unsteadiness, and a meaningfully higher chance of a nighttime fall. Nothing discussed here is a substitute for medical advice, but it is always worth asking a doctor or pharmacist whether the underlying cause has been addressed before a prescription becomes routine.
What Families Can Do Now
Start by tracking, not fixing. Many of these causes only become visible once someone writes the pattern down. For two weeks, keep track of what time your mother goes to bed, how often she wakes up, when she naps, and what she eats or drinks after dinner. A simple log turns “she is not sleeping well” into something a doctor can actually work with.
From there, small changes carry surprising weight. Going outside, or simply sitting by a bright window, in the first hours of the morning helps reset the internal clock, even in January. A consistent wake-up time matters more than a consistent bedtime. Naps are fine, but before 3:00 p.m. and under 30 minutes. And a clear, well-lit path from the bed to the bathroom reduces the risk that a broken night ends in a fall.
For older adults living alone, consistency is the biggest challenge. Routines slip when there is no one around to notice. This is where day-to-day support makes a real difference: a caregiver who encourages a morning walk, prepares meals at set times, keeps the evening calm, and is present overnight when the nights are the hardest part.
At Comfort Keepers® In-Home Senior Care Ottawa and Kanata, our Interactive Caregiving™ approach is built around exactly this kind of daily engagement: activity during the day, structure in the evening, and safety after dark. If your parent’s sleep has changed and you are not sure what comes next, we would be glad to talk it through with you. Contact us!
