Nighttime restlessness can be a frustrating and exhausting experience. Whether it’s caused by age, health conditions, lifestyle factors, stress or a poor sleeping environment, restless sleep can have a significant impact on our daily and long-term wellbeing.
In our article, we discuss the various causes of restlessness and offer tips to help you fall asleep faster and stay asleep longer.
The dangers of restless sleep
Restless sleep is a common complaint for many people across age ranges and lifestyles. While some people have an occasional night of poor sleep, others experience this issue on a more frequent basis.
Beyond simply being frustrating, difficulty falling and staying asleep can have both short- and long-term effects on your health, mood and daily performance. Restless nights disrupt the natural sleep cycle, reducing time spent in deep and REM sleep, which are essential for bodily repair and mental restoration. Over time, this can lead to weakened immunity, increased stress levels, weight gain and a higher risk of conditions such as heart disease and diabetes.
If you often find yourself sleeping fitfully, it may be a sign of an underlying condition, mental health concerns or an environment that isn’t supporting quality sleep. Addressing restlessness early can protect your health and boost your overall sense of wellbeing.
Causes of restlessness and disturbed sleep
There are myriad reasons why you might find yourself feeling restless at night. These range from your age and health condition to your mattress and nightly sleeping environment. We explore some of the more common reasons below; however, this list is not exhaustive. If you are struggling to achieve consistent, restful sleep and the reason is unknown, we recommend speaking with a healthcare professional.
Age group
Some people experience this phenomenon simply as a result of their age. Children and teenagers may encounter restless nights due to growth spurts, hormonal changes, issues with self-soothing or irregular routines. Adults often report restlessness linked to stress, work demands or family responsibilities in addition to health and lifestyle factors. As we age, sleep naturally becomes lighter and more fragmented. Older adults may wake more frequently and spend less time in deep sleep, increasing the likelihood of disturbed or restless nights.
Health conditions and medical causes
Certain disorders affect the ability to fall asleep reliably and stay asleep throughout the night. Restless legs syndrome (RLS) is one such example. This syndrome creates an uncomfortable tingling or crawling sensation in the legs where sufferers feel an overwhelming urge to keep moving, particularly when lying down. Similarly, individuals with sleep apnoea — a condition where breathing repeatedly pauses during sleep — tend to experience frequent micro-awakenings throughout the night, leaving them feeling tired and restless.
Hormonal fluctuations are another major factor. Menopause, pregnancy and thyroid imbalances can all interfere with comfort, temperature regulation, mood and the body’s internal clock, resulting in sleepless nights. Chronic pain conditions such as arthritis, fibromyalgia or back problems may make it difficult to stay comfortable in one position. Digestive issues (such as acid reflux) and respiratory ailments (particularly asthma or allergies) can also disrupt comfort, breathing and sleep quality.
Additionally, some medications list restlessness or insomnia as side effects, including certain antidepressants and stimulants. If you consistently feel restless or your sleep disruption is worsening, speaking with a healthcare professional can help identify the cause.
Stressors and mental health
Mental health concerns are another common cause of restless sleep. Mood disorders are known to disrupt the body’s natural sleep-wake cycle, reducing restorative deep sleep. Over time, poor sleep can worsen mental health symptoms, creating a difficult cycle of stress and restless nights.
In particular, anxiety can keep the nervous system in a heightened state, leading to racing thoughts, muscle tension and difficulty relaxing at bedtime. Even low-level, ongoing stress from work, finances or family life can make it harder to switch off and get some rest. Depression is also closely linked to sleep disruption. Some people experience insomnia, early waking or light, fragmented sleep, while others may sleep longer but still feel tired and restless during the day.Â
Lifestyle factors and bedtime habits
Lifestyle choices encompass a range of habits and routines, and these can often be the culprit behind restless sleep. In particular, stimulants such as caffeine and nicotine can remain in your system for hours, reducing your ability to fall into deeper sleep stages. Similarly, alcohol, though it may make you feel drowsy initially, often disrupts sleep later in the night, leading to frequent waking and lighter rest. Even going to bed overly full or hungry can cause discomfort that makes it harder to settle.
Late-night screen use is another common cause of restless sleep. The blue light emitted from phones, tablets and screens suppresses melatonin production, delaying your natural sleep rhythm. In addition to the disruptive light, the content you consume may stimulate your mind to wakefulness, making it more difficult to feel drowsy.
Irregular sleep schedules (going to bed and waking at different times each day) are a significant cause of restlessness at night. Also known as poor “sleep hygiene”, an inconsistent schedule can confuse your internal body clock, making it harder to feel consistently sleepy at night. Long daytime naps or intense exercise too close to bedtime may also leave you feeling energised rather than relaxed.
Sleep environment and your bed
Even small disruptions in your sleeping environment can prevent the body from fully relaxing. A bedroom that is too warm can interfere with your natural drop in core temperature, an essential part of falling asleep. Excess noise may cause repeated disruptions to your rest, even if you don’t fully remember it in the morning. Light exposure can suppress melatonin production and make it harder to drift into deeper sleep stages.
Physical comfort is equally important to ensuring restorative, uninterrupted rest. An unsupportive mattress or pillow can lead to sore pressure points, back pain and frequent tossing and turning, leaving you feeling tired and restless. Similarly, a partner suffering from restlessness can in turn impact your own ability to fall asleep or stay asleep, a phenomenon known as partner disturbance.Â
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How to overcome restless nights
Whether you experience occasional restless night or suffer from frequent sleep disturbances, the good news is that for many people, consistent changes can make a meaningful difference. This is of course not including chronic health conditions, which may be managed more appropriately with a healthcare professional.
Improving sleep quality usually involves supporting your body’s natural rhythms, reducing stimulation before bed and creating an environment that encourages relaxation.
- Keep a consistent sleep and wake time
Going to bed and waking up at the same time each day helps regulate your internal body clock, signalling more clearly to your body when it is time to sleep. - Reduce caffeine and alcohol in the evening
It is best to stop drinking coffee in the early afternoon or at least 6 hours before bedtime. Avoid consuming excessive alcohol at night; try to switch to water a few hours before going to bed, so you’re hydrated and naturally drowsy. - Create a calming routine before bed
Gentle activities such as reading, stretching or meditating signal to your brain that it’s time to rest. A warm bath or shower may also help your body start winding down. - Avoid using devices before or in bed
Limit your screen time at least an hour before sleep to encourage a natural state of sleepiness and promote the production of melatonin. - Make your bedroom cool, dark and quiet
Aim for a cool temperature, reduce clutter in your bedroom and block out light to support deeper, uninterrupted rest. If your room is often disturbed by noise, you may wish to consider a sound machine or ear plugs. - Invest in a supportive mattress and pillow
Proper spinal alignment and pressure relief reduce discomfort and night-time movement. You are more likely to enjoy deep, refreshing sleep when your muscles can relax.
Frequently asked questions
You may be overtired, stressed or anxious, which can keep your nervous system alert even when your body needs rest. Factor in your health, mental wellbeing and whether you are supporting your biological clock with good sleep hygiene and positive bedtime habits.
Common causes of restlessness include age considerations; health conditions or medications; stress, anxiety and metal health disorders; lifestyle factors and poor sleep routines; and your bedroom setup or mattress.
Racing thoughts, screen exposure, late-night exercise or irregular sleep schedules can delay melatonin release and make it harder to settle. Otherwise, medication, health conditions, dietary habits and even the setup of your bedroom can pose a challenge to falling soundly asleep.
If you’re feeling restless at night, try relaxation techniques to promote drowsiness, adjust your sleep habits and environment, and seek medical advice if symptoms are frequent or worsening.
