Smiling woman hugs an older man at breakfast, checking in after a good night’s sleep, as a young girl sits nearby.

When a loved one’s sleep changes: what’s normal aging, and what’s worth a closer look

Senior Care · Nov 3, 2026

"Daniel" is a pseudonym; his story is shared with identifying details changed to protect his family's privacy.

I want to tell you about a client I'll call "Daniel." He was in his late 70s, cared for by two family members splitting the responsibility between them. For a while, his family read it, the sleep especially, as ordinary aging.

Navigate life’s changes with more ease and confidence with TELUS Health Medical Alert.
Explore products >

Then came a memory lapse serious enough that it didn't fit that story anymore. Daniel started mixing up his daughters' names, and then it went further: in his mind, the two of them merged into one person. That, not the sleep problems, was what genuinely alarmed his family. Once he was tested, we found a combination that's more common than people expect: severe sleep apnea, a heart condition, and early signs of dementia still under investigation.

Daniel started continuous positive airway pressure (CPAP) therapy and needed a simple reminder device just to remember to put the mask on each night. Over the following months, the family noticed a little better memory, enough that he went back to understanding he had two daughters with two different names, not one person.

Treating his severe sleep apnea meant we could address at least one potentially contributing factor. CPAP isn't a treatment for dementia, and it isn't a cure-all for every symptom an older adult may be experiencing. But when obstructive sleep apnea is present, improving breathing and

reducing repeated sleep disruptions can improve sleep quality, daytime alertness and quality of life

. How much someone notices will vary depending on their overall health and what else may be going on.

The lesson I took from it: the sleep problem and the memory problem looked, at first glance, like one thing. They weren't. Separating the two, and getting the treatable piece treated, only happened because someone paid attention to the pattern instead of assuming it was just age.

Whenever a caregiver brings a loved one in and tells me their sleep "has changed," I ask the same kinds of questions: what's actually different, and since when?

"We're not asking caregivers to diagnose anything. Just tell us what's going on around it, what is your source of concern."

A lot of what caregivers notice can be part of normal aging

Sleep does change as we get older. It may become lighter and more fragmented, and people may wake more often during the night. Extra trips to the bathroom, more shifting and repositioning, or occasionally getting up for a middle-of-the-night snack aren't, on their own, necessarily red flags.

One myth I want to clear up right away: older adults don't simply stop needing sleep. What changes with age is sleep architecture and circadian rhythm, along with lifestyle, medications and the presence of other health conditions. The number of hours matters, but so does how someone functions during the day. Are they waking reasonably refreshed? Are they staying alert? Are they suddenly needing much more daytime sleep than they used to?

A significant change from someone's usual pattern, say, regularly sleeping eight hours and suddenly dropping to five, paired with noticeable daytime changes is the kind of thing worth raising with a doctor, particularly if there have also been changes in medication, health or mood.

An occasional afternoon doze can happen. What deserves more attention is new or excessive daytime sleepiness: regularly falling asleep during conversations, meals or activities, needing increasingly frequent naps, or struggling to stay awake despite apparently spending enough time in bed.

And this is where the line between "aging" and "sleep problem" can get blurry

Some sleep symptoms are easy to mistake for aging.

Snoring is a good example. Snoring becomes common enough that families may barely register it anymore. But loud, persistent snoring, particularly when accompanied by pauses in breathing, choking or gasping, can be a sign of obstructive sleep apnea.

Other symptoms can be surprisingly easy to explain away:

Waking with a dry mouth
Morning headaches
Frequent nighttime awakenings
Repeated trips to the bathroom overnight
Waking feeling unrefreshed despite spending enough time in bed
Excessive daytime sleepiness or frequent naps
Difficulty concentrating or remembering things
Irritability or changes in mood
Restless or fragmented sleep
A bed partner noticing snoring, gasping, choking or pauses in breathing

None of these symptoms, by themselves, proves that someone has sleep apnea. That's important. Dry mouth may come from medications. Headaches have many possible causes. Nocturia can have urological, metabolic or medication-related causes. Fatigue can come from dozens of things.

But when several symptoms start appearing together, or represent a clear change from someone's baseline, that's when I would rather have someone mention them to their healthcare provider than simply write them off as getting older.

Where it actually becomes worth a conversation

There's no single bright line, and I want to be upfront about that. The practical approach is to watch for patterns over time rather than reacting to any one bad night, and to be proactive: if a medication dose is changing, ask the doctor ahead of time what side effects to expect, rather than trying to figure it out after the fact.

"You have to watch for patterns. You can't just say, 'Oh, it's a one-off thing.'"

Daytime behaviour matters as much as nighttime sleep. Mood swings, agitation or anger can be a signal, but so can the opposite: unusual quietness, or

pulling back from hobbies, walks or people they normally see

. The important part is noticing a sustained change from that person's usual behaviour rather than reacting to a single rough week.

Memory changes deserve a closer look too, and not all memory changes mean the same thing. There's a real difference between everyday forgetfulness (misplacing keys, for example) and something bigger, such as repeatedly forgetting familiar names or losing track of entire conversations.

Poor or disrupted sleep, including sleep apnea and insomnia, can affect attention, concentration and memory. Those symptoms can sometimes overlap with symptoms families associate with cognitive decline. That doesn't mean sleep apnea explains every memory problem, and it certainly doesn't mean treating sleep apnea treats dementia. It means sleep is one potentially modifiable piece worth discussing with the person's healthcare team rather than assuming every change is an inevitable consequence of aging.

This is exactly what happened with Daniel: the memory changes and the sleep problem looked connected, but there was more than one thing happening.

One sign that's easy to miss entirely: appetite changes and dehydration. Beyond dizziness and headaches, dehydration can contribute to physical and cognitive changes, particularly in older adults. Reduced eating, drinking, self-care or hygiene can sometimes get filed under "memory issues" when something else may also be contributing.

"It's not just the onus of the caregiver."

There's also, of course, the patient themselves. I try to involve the person I'm caring for in noticing their own changes too, not just leave it to whoever's watching them.

If sleep apnea is found, what can treatment actually change?

This is another place where expectations matter.

CPAP isn't a fountain of youth. It won't reverse normal aging, and it doesn't treat every medical condition that may be contributing to fatigue, memory problems or poor sleep.

What CPAP does is keep the airway open during sleep in someone with obstructive sleep apnea, reducing the repeated breathing disruptions that can fragment sleep and, in some people, repeatedly lower oxygen levels overnight.

When treatment is effective and used consistently, some people notice improvements in sleep-related symptoms such as daytime sleepiness,

morning headaches

, alertness and energy. Some people also

report feeling sharper or more focused

, though this varies widely from person to person, and CPAP isn't intended or proven as a treatment for memory or cognitive conditions. Bed partners may notice something too: less snoring, gasping and disrupted sleep beside them.

For an older adult juggling several health conditions, even improving one contributor to poor sleep can matter.

That was the point with Daniel. We weren't expecting CPAP to explain or fix everything that was happening to him. We identified severe sleep apnea, something we could actually treat, while his healthcare team continued investigating everything else.

Sometimes better care isn't finding one diagnosis that explains every symptom. It's identifying the pieces we can do something about.

What a caregiver can actually do, before there's a diagnosis

My advice here is pretty concrete. Keep a simple log, similar to a clinical sleep diary, tracking sleep and any related changes over a few weeks. Note bedtime and wake time, naps, nighttime awakenings, bathroom trips and anything unusual you notice: snoring, gasping, morning headaches, dry mouth, changes in mood or excessive daytime sleepiness.

Book a proactive check-in with the family doctor or nurse practitioner rather than waiting for something to go wrong. And when it comes to actually getting information,

ask specific, curious questions rather than a generic "how are you."

I see this with my own dad: ask him how his day was and you get one word back, "good," and that's the whole conversation. Ask something specific instead: what he had for lunch, how he slept last night, what he's been up to this week, and you actually get somewhere.

Something else caregivers rarely hear directly:

build a community around the person you're caring for, rather than carrying it alone

. A distant relative, a neighbour or a close friend often catches something a full-time caregiver misses simply because they see the person in a different context. And when something is missed, or caught later than you'd have liked, my advice is to lead with self-compassion rather than guilt.

"Be kind to yourself before you start taking care of others."

The takeaway

Sleep changes as we age. That doesn't mean every sleep problem is caused by aging.

The goal isn't to turn every caregiver into a diagnostician. It's to notice when something has changed from a person's usual pattern and know when that pattern is worth bringing to their healthcare team.

A little more waking at night may be part of aging. But persistent loud snoring, gasping or pauses in breathing, waking with headaches or a dry mouth, increasing daytime sleepiness, or noticeable changes in mood, memory or functioning deserve a closer look when several things appear together.

Ask specific questions. Watch the pattern rather than one isolated night. Stay proactive with your loved one's care team. And remember that identifying something treatable doesn't mean you've found the explanation for everything.

Sometimes, as it was with Daniel, it simply means you've found one important piece that doesn't have to be dismissed as "just getting older."

Navigate life’s changes with more ease and confidence with TELUS Health Medical Alert.
Explore products >

Frequently asked questions

Is it normal for an older adult to fall asleep sitting up during the day?

An occasional afternoon doze isn't necessarily concerning. What is more useful to pay attention to is whether daytime sleepiness is new, increasing or interfering with normal activities. Regularly falling asleep unintentionally despite apparently getting enough opportunity for sleep is worth discussing with a healthcare provider, particularly if there is also loud snoring, gasping or fragmented sleep.

Why do older adults often wake up around 2 or 3 a.m.?

There isn't one explanation. Sleep can become lighter and more fragmented with age, while medications, pain, nocturia, mood, medical conditions, circadian changes and sleep disorders can all contribute. If waking at the same time is new or persistent, particularly after a medication or health change, it's worth mentioning to a healthcare provider rather than assuming it's simply age.

How much sleep does an older adult actually need?

Older adults still need meaningful sleep. The exact amount varies between people, but the number on the clock isn't the whole story. A person's usual sleep pattern and daytime functioning matter too. A significant change from their baseline, particularly when accompanied by daytime sleepiness, cognitive changes or other symptoms, deserves attention.

Can snoring just be part of getting older?

Snoring is common, but that doesn't mean it should automatically be dismissed. Loud, persistent snoring, especially alongside witnessed pauses in breathing, choking or gasping, or symptoms like morning headaches, dry mouth or excessive daytime sleepiness, can be associated with obstructive sleep apnea and is worth raising with a healthcare provider.

What conditions are sometimes mistaken for dementia?

Several conditions can cause symptoms that overlap with cognitive decline. Poor sleep and sleep disorders such as obstructive sleep apnea can affect attention, concentration and memory. Medication effects, dehydration and other medical conditions may also contribute. New or significant cognitive changes should be medically assessed rather than attributed to either aging or a sleep disorder without further evaluation.

Can CPAP improve memory or other symptoms in an older adult?

If obstructive sleep apnea is present, CPAP treats the repeated airway obstruction that occurs during sleep. CPAP is not a treatment for memory loss or dementia. With effective, consistent use, some people notice improvements in sleep-related symptoms such as daytime sleepiness, morning headaches, alertness and overall quality of life. Some people also report feeling more alert or better able to concentrate, though this isn't consistent or guaranteed, and how someone responds varies a great deal, especially when other medical or cognitive conditions are present. Treating coexisting sleep apnea addresses one potentially modifiable contributor to poor sleep and daytime functioning; it is not a treatment for an underlying cognitive condition itself.