Check out the courses we offer
Knowledge Base » Mental Health » All about Sleep and Mental Health

All about Sleep and Mental Health

Extensive research reveals a powerful relationship between sleep and mental health, with each influencing the other. According to a recent UK survey, there were over 500,000 prescriptions written for Zopiclone in 2021. This is a medicine used to help people sleep. What’s more, the same survey revealed that the average UK adult only sleeps for six hours and ten minutes each night, with men getting around 13 more minutes compared to women. Startlingly, almost 8% of people were only getting three to four hours of sleep per night.

Quality sleep is crucial for emotional balance and cognitive functioning, yet mental health conditions can disrupt sleep patterns. Understanding this interplay is essential for nurturing our overall well-being. This article will explore the connection between sleep and mental well-being and what can affect the quality of both.

How can sleep affect mental health?

The quality and duration of sleep directly impact our mental health. With restful and adequate sleep, people generally have better mental well-being. Poor sleep patterns, on the other hand, usually contribute to more frequent bouts of depression, anxiety and other mental health problems. Let’s look at these aspects in more detail.

The impact of good sleep on mental health

The impact of good sleep on mental health is profound. Since sleep is heavily linked to emotional regulation, when sleep is restorative, we cope better with stress and can manage our emotions. Good sleep also enhances our cognitive function, meaning we have improved mental clarity and better decision-making abilities. Good sleep also promotes a positive mood and overall sense of well-being, contributing to optimal mental health.

The consequences of poor sleep on mental health

The consequences of poor sleep on mental health are substantial. With consistently inadequate sleep, we’re more at risk of developing a mental health problem. Moreover, existing mental health conditions can be worsened by insufficient sleep, as it intensifies symptoms and challenges the ability to cope. It is clear that prioritising good sleep is crucial for maintaining optimal mental health.

What causes problems with sleeping?

There are various factors that can disrupt sleep patterns, leading to problems with sleeping. Environmental factors play a significant role in sleep quality. Noise pollution, such as loud traffic or neighbourhood disturbances, can interfere with falling asleep and staying asleep, impacting overall sleep duration and quality. Similarly, bright lights and screens (especially blue light) suppress melatonin production and disrupt our natural sleep-wake cycle.

Creating a comfortable bedroom environment is crucial for promoting quality sleep. Issues like an uncomfortable mattress, inadequate temperature control, or excessive clutter can hinder relaxation and prevent a restful sleep experience. Addressing these environmental factors can significantly improve the chances of getting a good night’s sleep.

Lifestyle choices and habits also contribute to sleep problems. Inconsistent routines and irregular sleep schedules disrupt our natural circadian rhythm, which makes it harder to fall asleep. Other lifestyle choices like excessive caffeine or alcohol consumption, particularly close to bedtime, means we experience shorter and poorer-quality sleep. Additionally, people who lead sedentary lifestyles and don’t do regular exercise are more likely to suffer from sleep problems.

Consuming Alcohol Which Affects Sleep

How can mental health affect sleep?

Mental health conditions can significantly disrupt sleep patterns, leading to difficulties in getting adequate and restful sleep.

The following are some ways in which common mental health conditions can impact sleep:


Anxiety often manifests as racing thoughts, worry and restlessness, making it challenging to fall asleep or stay asleep. The mind becomes hyperactive, making it difficult to achieve the state of relaxation necessary for sleep. Individuals with anxiety may experience difficulty quieting their thoughts and may frequently wake up during the night due to anxious feelings.


Sleep disturbances are common with depression. Some people sleep in excess and struggle to get out of bed, which is known as hypersomnia. Others, however, find it difficult to fall asleep or stay asleep, which is known as insomnia.


High levels of stress can contribute to sleep disturbances. Stress triggers a heightened state of arousal, leading to racing thoughts and increased physiological activation, making it harder to relax and fall asleep. Additionally, stress can result in sleep fragmentation, causing individuals to wake up frequently during the night or experience restless and light sleep.

These disruptions in sleep caused by mental health conditions can create a vicious cycle. Prioritising mental health and seeking appropriate treatment can contribute to restoring healthy sleep patterns and promoting better mental and emotional well-being.

Sleep disorders and mental health

Sleep disorders impact our mental health significantly. These disorders often disrupt the quality and quantity of sleep, leading to various mental health consequences.

Let’s look at three common sleep disorders:


Insomnia involves difficulty falling asleep or staying asleep or experiencing non-restorative sleep. When insomnia persists, it can cause or worsen mental health problems like anxiety and depression. It can also exacerbate or encourage substance abuse. When people are sleep deprived, they’re more reactive emotionally and have impaired cognitive function.

Sleep apnoea

This condition describes pauses in breathing when someone is asleep. This leads to frequent awakenings during the night. As such, people find themselves excessively sleepy during the day and can have trouble with cognitive performance and mood disturbances. If left untreated, sleep apnoea is known to lead to the development or exacerbation of mental health disorders.

Restless leg syndrome (RLS)

RLS causes uncomfortable sensations in the legs, often accompanied by an uncontrollable urge to move them. These symptoms typically worsen at night, leading to difficulty falling asleep and disrupted sleep. The chronic sleep disruption caused by RLS can contribute to fatigue, irritability and impaired daytime functioning, ultimately affecting mental well-being.

When sleep disorders are left untreated, they can exacerbate mental health symptoms and hinder recovery. The sleep deprivation, fragmented sleep and associated daytime impairments can amplify the severity of existing mental health conditions.

It is essential to recognise the bidirectional relationship between sleep disorders and mental health. By addressing sleep-related issues alongside mental health concerns, individuals can work towards better sleep and improved overall well-being.

Sleep and specific mental health conditions

The relationship between sleep and mental health extends to various specific mental health disorders and conditions.

Bipolar disorder

People with bipolar disorder will often have disrupted sleep patterns. During manic episodes, they may have a reduced need for sleep, leading to decreased sleep duration. Conversely, during depressive episodes, they may struggle with excessive sleepiness and prolonged sleep. These sleep disturbances can exacerbate mood instability and contribute to the severity of bipolar symptoms.


Sleep abnormalities are common among individuals with schizophrenia. People might find it difficult to fall asleep or stay asleep. Sleep problems in schizophrenia can lead to relapse if left untreated. Effective management of sleep can contribute to better overall symptom management in individuals with schizophrenia.

Post-traumatic stress disorder (PTSD)

Sleep disturbances are a hallmark of PTSD. Lots of individuals who have PTSD commonly experience nightmares and flashbacks that disrupt sleep. Addressing sleep problems is an essential component of PTSD treatment and recovery.

Attention-deficit/hyperactivity disorder (ADHD)

Though ADHD is not a mental health condition per se, it is often associated with sleep difficulties. Those with ADHD often struggle with sleep and there is a complex relationship between the two. Treating sleep disorders alongside ADHD can lead to improved attention, behaviour and overall functioning.

Recognising the unique challenges that specific mental health disorders and other conditions present can inform targeted interventions and treatment approaches.

Sleep and substance use/abuse

There is a multifaceted, intricate relationship between sleep, mental health and substance abuse.

Understanding this interplay is crucial for comprehensive treatment approaches:

  • Disrupted sleep patterns: Substance abuse can disrupt the normal sleep-wake cycle. Stimulants like cocaine and amphetamines will reduce sleep quality and cause insomnia. Depressant drugs, like opioids or alcohol, can induce excessive sleepiness, fragmented sleep, and breathing difficulties during sleep. These disruptions can lead to sleep deprivation, daytime fatigue and impaired cognitive functioning.
  • Mental health implications: Substance abuse often co-occurs with mental health disorders. Addressing sleep problems is crucial for effectively managing and treating both substance abuse and co-occurring mental health conditions.
  • Importance of addressing sleep in treatment and recovery: Recognising the impact of sleep disruptions during substance abuse treatment and recovery is essential. Addressing sleep problems can positively influence substance abuse outcomes and mental health recovery.

When we consider substance abuse treatment, we also must address sleep disturbance issues in order to promote better recovery and reduce the risk of relapse. Additionally, improving sleep quality can enhance mood stability, cognitive function and overall mental health, thereby reinforcing the recovery process. Thus, recognising the importance of addressing sleep problems during substance abuse treatment is crucial for comprehensive care.

How much sleep is necessary to maintain good mental health?

The recommended sleep durations vary depending on different stages of life:

  • Infants and toddlers (0-3 years): It is crucial for infants and toddlers to get sufficient sleep for their rapid growth and development. Experts recommend this age group have between 12 and 17 hours of sleep per day, including naps.
  • Children (4-12 years): School-age children need a sufficient amount of sleep to support their physical and cognitive growth. The recommended sleep duration for children in this age range is between 9 and 11 hours per night.
  • Adolescents (13-18 years): During adolescence, hormonal changes and increased academic and social demands can affect sleep patterns. Teenagers need adequate sleep to support their overall development and well-being. Experts recommend between 8 and 10 hours a night.
  • Adults (18+ years): Adults also require an appropriate amount of sleep to promote optimal mental health and overall functioning. Individual sleep needs may vary but it usually falls in the 7- to 9-hour range.
Poor Sleep Leads To Mental Health

How to improve sleep and mental health

Several therapeutic approaches can help individuals achieve better sleep and promote positive mental health.

Here are some effective strategies:

  • Cognitive Behavioural Therapy for Insomnia (CBT-I): This is a therapeutic technique that focuses on identifying and changing the thoughts and behaviours that contribute to sleep difficulties. CBT-I has shown promising results in improving sleep quality and duration, reducing sleep onset latency, and managing sleep-related anxiety.
  • Mindfulness-based techniques: Mindfulness practices cultivate awareness and non-judgemental acceptance of the present moment. These techniques can be beneficial for reducing racing thoughts and promoting relaxation, thus supporting better sleep.
  • Sleep hygiene practices: Establishing healthy sleep habits is crucial for optimising sleep and mental health. Creating a sleep-friendly environment with a comfortable mattress and proper room temperature and minimising noise and light disruptions can significantly improve sleep quality. Additionally, avoiding stimulating activities and substances close to bedtime, such as caffeine, electronic devices and intense physical exercise, can help prepare the body and mind for restful sleep.

Other lifestyle changes that can positively impact sleep and mental health

In addition to therapeutic approaches, making certain lifestyle changes can significantly improve sleep quality and support mental well-being.

Regular physical exercise helps regulate circadian rhythms and promotes better sleep. Most days of the week should contain at least half an hour of moderate-intensity exercise. Exercise not only enhances sleep but also reduces anxiety and improves overall mood.

Secondly, limiting the consumption of stimulants like caffeine and nicotine, particularly close to bedtime, is important. These substances will interfere with our ability to fall asleep and stay asleep. Choose decaffeinated beverages in the evening and avoid smoking or using nicotine products before bed.

Another lifestyle change to implement is to create a soothing pre-sleep routine to signal to your body that it’s time to unwind. Consider incorporating relaxation techniques such as deep breathing exercises, progressive muscle relaxation or meditation.

It’s important to recognise that while lifestyle changes can be beneficial, seeking professional help is essential when sleep problems persist or are significantly impacting mental health. By implementing these lifestyle changes and seeking professional help when needed, you can take proactive steps towards improving your sleep and mental health. With time and persistence, you can establish healthier sleep habits and experience a positive impact on your overall well-being.

Promoting healthy sleep habits in children and adolescents

Children and adolescents have distinct sleep needs and face unique challenges that can affect their sleep patterns. As parents and caregivers, it’s crucial to prioritise and promote healthy sleep habits to support their optimal cognitive and emotional development.

Here are some strategies to consider:

  • Establish consistent sleep routines: Set regular bedtimes and wake-up times, even on weekends and holidays. Consistency helps regulate their internal body clocks and promotes better sleep quality.
  • Create a sleep-friendly environment: Ensure that their sleep environment is conducive to quality sleep. Keep their bedroom quiet, dark and at a comfortable temperature. Consider using white noise machines or earplugs to block out external disturbances. Remove electronic devices from their bedrooms or establish strict limits on their use before bedtime, as the blue light emitted by screens can interfere with sleep.
  • Teach relaxation techniques: Help children and adolescents develop relaxation techniques to manage any stress or anxiety that may impact their sleep. Encourage them to practise deep breathing exercises, progressive muscle relaxation or visualisation techniques before bed. These techniques can help calm their minds and promote a sense of relaxation for better sleep.
  • Limit caffeine intake: Be mindful of the caffeine content in their diet. Avoid giving children and teenagers caffeinated beverages, especially in the afternoon and evening. Caffeine can interfere with their ability to fall asleep and disrupt their sleep quality.
  • Prioritise physical activity: Encourage regular physical activity during the day to promote better sleep at night. Engaging in age-appropriate exercises or outdoor play helps them expend energy and regulates their sleep-wake cycle. However, ensure that vigorous activities are avoided close to bedtime, as they can have an alerting effect.

Final thoughts on sleep and mental health

In conclusion, sleep plays a vital role in mental health, and it is essential to prioritise good sleep habits. By recognising the bidirectional relationship between sleep and mental health, we can take proactive steps to support our sleep health and overall mental well-being. Implementing strategies such as cognitive behavioural therapy for insomnia, mindfulness techniques and maintaining good sleep hygiene can significantly improve sleep quality. It is equally important to seek professional help if it is needed.

Mental Health Awareness CPD Course

Mental Health Awareness

Just £20

Study online and gain a full CPD certificate posted out to you the very next working day.

Take a look at this course

About the author

Avatar photo

Louise Woffindin

Louise is a writer and translator from Sheffield. Before turning to writing, she worked as a secondary school language teacher. Outside of work, she is a keen runner and also enjoys reading and walking her dog Chaos.

Similar posts