Exercise and Sleep Quality for Older Adults

Poor sleep is one of the most common complaints among older adults, and one of the most frustrating. You are tired, but you cannot sleep. You fall asleep, but you wake at 3am and cannot get back down. You sleep for eight hours and still feel exhausted. If this sounds familiar, you are not imagining it, and it is not simply “part of getting old”.

Sleep changes as we age. But there is a difference between the normal shifts in sleep architecture that come with ageing and the kind of chronic poor sleep that significantly affects quality of life. The good news is that exercise, in the right form and at the right time, is one of the most effective non-pharmacological interventions for sleep in older adults.

Why sleep changes with age

Several things happen to sleep as we get older. The amount of deep (slow-wave) sleep decreases, which means sleep becomes lighter and more easily disrupted. The circadian rhythm shifts earlier, so the urge to sleep comes sooner in the evening and wake-up time moves earlier in the morning. Melatonin production declines, making it harder to initiate and maintain sleep. And chronic conditions such as pain, nocturia (waking to urinate), and restless legs become more common and disrupt sleep directly.

Research suggests that between 40 and 50 percent of community-dwelling adults over 65 report significant insomnia symptoms. The rate increases further in older age groups and in people managing multiple chronic conditions. Sleeping tablets are often prescribed, but they carry risks of falls, cognitive side effects and dependency, particularly in older adults.

What exercise does for sleep

The evidence connecting regular physical activity to improved sleep quality in older adults is now substantial. A 2025 systematic review and meta-analysis published in Frontiers in Medicine, which used the Pittsburgh Sleep Quality Index as its outcome measure, found that exercise interventions significantly improved subjective sleep quality in older adults across multiple studies.

The mechanisms are well-understood:

Exercise raises core body temperature, which then drops during recovery. This temperature drop signals the body that it is time to sleep, a process that mirrors what happens in a normal sleep-onset cycle.
Regular aerobic exercise increases melatonin production and can help reset the circadian rhythm, supporting more regular sleep-wake patterns.
Exercise reduces anxiety and depressive symptoms, both of which are major drivers of insomnia.
Physical activity improves sleep architecture, increasing the proportion of deep, restorative sleep and reducing night waking.

A controlled study found that regular moderate aerobic exercise in sedentary older adults produced an 18 percent increase in peak melatonin levels compared to baseline, with the timing of melatonin onset advancing by around 25 minutes, bringing it closer to the ideal sleep window.

Which type of exercise helps most?

A 2025 network meta-analysis published in BMC Geriatrics, comparing different exercise types for sleep in older adults with insomnia, found that resistance training was the most effective modality, followed by aerobic exercise and combination programmes. Tai chi and mind-body exercise also showed benefit, particularly for older adults managing anxiety or chronic pain alongside sleep problems.

The key finding across the research is that all these modalities are better than no exercise. The best exercise for sleep is one you will actually do consistently. For someone who has never exercised regularly, a supervised group balance and strengthening class or a twice-weekly individual programme with a biokineticist is a practical and evidence-based starting point.

Does timing matter?

The research on exercise timing and sleep is nuanced. Morning exercise appears to support the natural circadian rhythm most reliably, and long-term engagement in morning exercise is associated with lower waking cortisol and better sleep quality. However, moderate exercise in the late afternoon or early evening is also generally fine for most older adults. What the evidence does suggest is that vigorous exercise close to bedtime (within two hours) can delay sleep onset, so it is worth avoiding.

For most of the older adults we see, the practical advice is simple: exercise regularly, at a time that suits you and that you can sustain. The benefits for sleep accrue over weeks and months of consistent activity, not after a single session.

What about people already on sleep medication?

If you are currently taking medication for sleep, exercise should be seen as a complementary approach rather than an immediate replacement. Over time, consistent physical activity often reduces dependence on sleeping aids, and this should be discussed with your doctor. A biokineticist will always work within the context of your full health picture and can communicate with your geriatrician or GP if needed.

Need a hand?

An individual exercise programme or group class with a biokineticist can help address the root causes of poor sleep rather than treating the symptom alone. To find out what would suit your situation, visit our exercise for older adults page or get in touch.