Sleep Apnea in Older Adults
Apnea is far more common with age and is routinely dismissed as normal ageing. A 2025 analysis of nearly 15,000 people found treatment improves sleepiness, mood, cognition and mortality.
Sleep apnea becomes substantially more common with age, and it is also where treatment is most often not offered — on the reasoning that disturbed sleep is simply part of getting older, or that a mask is too much to ask of someone in their seventies.
The evidence does not support that reasoning.
What the analysis found
A 2025 systematic review and meta-analysis identified 229 studies and included 13, covering 14,880 participants, examining CPAP outcomes in elderly patients (Sleep and Breathing, 2025).
| Outcome | Effect size (95% CI) |
|---|---|
| Daytime sleepiness | −2.92 (−3.82 to −2.03) |
| Mortality | 0.64 (0.52 to 0.75) |
| Diurnal symptoms | 0.61 (0.42 to 0.79) |
| Depression | 0.35 (0.03 to 0.67) |
| Digit symbol (cognition) | 0.24 (0.06 to 0.41) |
| Anxiety | 0.20 (0.02 to 0.38) |
| Digit span (cognition) | 0.19 (0.01 to 0.36) |
CPAP was significantly associated with improvements in sleepiness, anxiety and depression, small improvements in the two cognitive measures, and moderate effects on mortality and diurnal symptoms [Sleep Breath 2025].
And the benefits were particularly evident in consistent users of more than four hours, especially for daytime sleepiness [ibid].
How to read it
Sleepiness is the standout. An effect size of −2.92 is large by any convention, and it is the outcome older patients most often describe as "just getting old."
The cognitive effects are small. 0.19 and 0.24 on digit span and digit symbol are real but modest, and they are specific psychometric measures rather than everyday function. This is not evidence that CPAP prevents dementia. Snoring and memory.
The mortality figure needs care. A moderate effect size of 0.64 is striking, but this is a meta-analysis largely of observational data, and in an elderly population the people who obtain and consistently use a CPAP machine differ systematically from those who do not — in frailty, cognition, comorbidity and home support, all of which independently predict survival. The authors themselves call for larger, well-structured randomised trials in compliant patients.
One inconsistency worth flagging. This analysis found a small anxiety benefit (0.20, CI 0.02–0.38). A separate systematic review of 20 randomised trials found no effect of CPAP on anxiety. Different populations and different methods, and the honest position is that the anxiety question is unsettled. Sleep apnea and depression.
Tier 2 overall — large pooled sample, mixed study designs, selection confounding on the hardest endpoint. How we grade evidence.
Why it gets missed in older people
The symptoms are attributed to age. Daytime sleepiness, napping, poor concentration, low mood, waking at night, needing the bathroom — all are read as normal ageing, and all are apnea symptoms.
Presentation shifts. Older adults are less likely to report classic loud snoring with witnessed pauses and more likely to present with fatigue, cognitive complaints, falls or nocturia. Nocturia and sleep apnea.
Living alone is common, which removes the witness the screening questionnaires depend on. Someone with no bed partner cannot answer whether anyone has observed them stop breathing, and scores lower as a result. How to tell if you snore when you live alone.
And the condition genuinely is more common with age — muscle tone falls, tissue elasticity decreases, fat redistributes toward the neck at stable weight. That makes "it's just age" both partly true and a poor reason not to treat. Why snoring gets worse with age.
Things that differ in older patients
Central apnea is more common, and it does not respond to pressure the same way. Worth knowing if a report shows central events. Central sleep apnea.
Comorbidity and medication matter more. Sedatives, opioids and some cardiac conditions all interact with sleep-disordered breathing, and polypharmacy is common. A medication review is a genuine intervention here. Sedatives that make snoring worse.
Mask tolerance can be harder with dry skin, dentures, arthritis limiting strap adjustment, or cognitive impairment. These are equipment problems with equipment solutions, and they are the main reason treatment is abandoned. Ask for a fitting review rather than concluding it cannot work. Getting used to CPAP · Mouth leak.
An oral appliance may suit better, though dentition is the limiting factor — appliances need teeth to anchor to, and dentures complicate it. CPAP versus an oral appliance.
Weight loss is a weaker lever than in younger patients, and unintentional weight loss in older adults is its own concern rather than a goal.
The practical case
The argument for treating is not primarily about extending life, where the evidence is softest. It is that an effect size of −2.92 on daytime sleepiness represents something a person feels every day — and sleepiness in an older adult carries specific consequences: falls, driving risk, reduced activity, and social withdrawal that gets attributed to mood or cognition.
Four hours a night appears to be where the benefit concentrates [Sleep Breath 2025], which is a more achievable target than perfect adherence and worth saying to someone daunted by the prospect. What happens after a diagnosis.
The line
No consumer product treats obstructive sleep apnea at any age. Nasal strips and tape do not, and in an older adult whose sleepiness is being written off as ageing, buying one is how a treatable cause stays untreated. Snoring versus sleep apnea · Risk check.