The Intersection Of Insomnia And Mental Health

Medically reviewed by Laura Angers Maddox, NCC, LPC
Updated October 25, 2024by BetterHelp Editorial Team
Content warning: Please be advised, the below article might mention substance use-related topics that could be triggering to the reader. If you or someone you love is struggling with substance use, contact SAMHSA’s National Helpline at 1-800-662-HELP (4357). Support is available 24/7. Please see our Get Help Now page for more immediate resources.

With one-third of the population reporting trouble sleeping, insomnia is considered the most common sleep disorder in the United States. This condition is characterized by poor sleep quality, including difficulty falling asleep, staying asleep, or both. If you have insomnia symptoms for at least three months, your doctor may also recommend an evaluation for a mental health condition.  

In one systematic review published in Sleep Medicine Reviews, insomnia was proven a significant predictor for various mental health conditions and symptoms, including anxiety, depression, substance use disorders, and psychosis. Knowing how these two challenges can be addressed and treated might be valuable if you are struggling to sleep and are concerned about your mental health. 

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Insomnia and mental health: An overview of sleep disorders

Statistics on insomnia and mental health may vary depending on which mental health condition you're diagnosed with. 

Insomnia symptoms occur for 20% to 40% of individuals with a mental illness, but these rates can rise to 50% to 70% for people with mood disorders and 70% to 90% for people with anxiety disorders. In addition, insomnia symptoms are present for about 90% of US veterans with PTSD related to combat.

Research has also revealed that individuals with bipolar disorder experience changes in their sleep patterns before a manic or depressive episode begins. Schizophrenia, ADHD, autism spectrum disorder, and seasonal affective disorder also have a bi-directional relationship with sleep, where each affects the other. These statistics reveal that, while managing insomnia does not necessarily mean you have a mental health condition, you may be at risk of insomnia if you do.  

Research on mental health and insomnia in college students

Community living, frequent social gatherings, and the strain of work and school can limit the amount of quality sleep college students get, with up to 60% of students living with poor sleep quality and at least 7.7% meeting the criteria for insomnia. Furthermore, sleep problems and mental health symptoms are often connected. 

A group of researchers in Texas decided to look further into the connection between insomnia and mental health challenges in a focused study on college students. Below are the results of that study. 

Participants

All the participants in the study were undergraduate students from a Southwestern university. They were recruited through in-class announcements, ads on campus, and an online listing with the psychology department's research participant pool, which was available to some psychology students for extra credit.

The final sample included 373 individuals, including 227 women and 146 men. Ethnicity was reported as 66.2% Caucasian, 15.3% African American, 9.1% Hispanic, 5.7% Asian American, and 2.7% undisclosed. Many participants were recruited through a core curriculum class, representing various majors, including psychology, social sciences, visual arts, education, and political science.

Methods

Once students registered for the study online, they downloaded and printed the consent form and questionnaires to complete and return, which consisted of a sleep diary, health questionnaire, and a symptom checklist. All documents were returned to the psychology research lab. 

The checklist was a self-report assessment evaluating mental health symptoms using a Likert-type scale to measure how much distress events had caused over the past week for the students. The questions screened for nine types of mental health symptoms. The health questionnaire included questions about exercise, substance use, and chronic health, and three specific questions were included to establish the definition of insomnia in this study. 

For one week before the study, the students completed a sleep diary, completing entries each morning about their sleep the night before. They were asked to include information about their bedtime, the time it took to fall asleep, and how long it took until they woke up. 

Based on responses to the health questionnaire, the researchers defined people with insomnia as those who had trouble falling or staying asleep at least three times a week for six months or longer. They purposely excluded daytime complaints about sleep difficulties, creating a more rigorous definition of insomnia than in some other studies.

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Results

Based on the researchers' insomnia definition, 9.4% of participants were experiencing the condition. 58.2% of participants were identified as people without insomnia. The remaining 32.4% were excluded from the analysis because they had a sleep disorder, displayed insomnia symptoms but didn't complain, or had insomnia but no symptoms.

The assessments revealed that students experiencing insomnia were more likely to be experiencing obsessive-compulsive disorder, depression, anxiety, and somatization (physical symptoms of mental stress). However, 30.6% of participants reported at least one other medical condition, including asthma, diabetes, migraines, or gastrointestinal issues. When researchers considered these conditions, obsessive-compulsive symptoms were the only difference in mental health between those who were and were not experiencing insomnia.

In summary

A study of 400 college students examined the link between insomnia and mental health. Almost 10% of the students reported experiencing insomnia symptoms, and those participants were more likely to be experiencing symptoms of obsessive-compulsive disorder, depression, anxiety, and somatization.

Future research

Like the chicken-egg paradox, this study raises the question of whether insomnia or mental health conditions came first. Researchers often consider both sides of the question, finding that insomnia can lead to mental illness and mental illness can lead to insomnia. The two may build on each other, so preventing the onset of one may aid the other. 

How to treat insomnia and mental health conditions

Several options are available for treating insomnia. While medication may be an initial choice in treatment, cognitive-behavioral therapy has been shown to be more effective and longer-lasting results for some people. In a 2012 study, 164 British adults were provided six weekly sessions with an animated "virtual therapist" that taught them behavioral, cognitive, and relaxation strategies to improve their sleep

Content included progressive muscle relaxation, sleep hygiene, and sleep restriction. All information was strategically provided based on baseline assessments and sleep diaries. Those who completed the intervention reduced the time it took them to fall asleep at night by 56%, compared to a 17% reduction in the control group. In addition, over 70% of the treatment group increased their sleep efficiency. 70% of their time in bed was spent sleeping, compared to approximately 20% of the control group.

The study's results found that sleep hygiene could be a significant way to reduce sleep challenges. Below are a few sleep hygiene strategies you can use at home to potentially reduce insomnia symptoms. 

Increase your physical activity to avoid insomnia and mental health problems

Consistent exercise, 30 to 60 minutes three or more times a week, can help you fall asleep faster and experience deeper sleep. Since exercise stimulates your body, schedule your next workout session a few hours before bedtime. However, avoid strenuous exercise within an hour of going to sleep, as it may cause you to feel less tired. 

Follow a routine if you have difficulty falling asleep

Sleeping in on the weekend can feel relieving, but it may quickly cut your daily routine progress. A consistent sleep schedule can remind your body of your usual wake and sleep times. Keep your bedtime and wake time to an hour's window, especially if you're at a higher risk for insomnia.

Nightly wind-down routines may also be beneficial in signaling to your body that sleep is soon approaching. Create a restful routine that helps you prepare mentally and physically for bed, shower, read a book, and limit stressors. Don't exercise or overindulge in screen time within an hour of going to sleep. 

Limit screen time

The blue light of your phone, TV, and computer can suppress melatonin production and shift your circadian rhythms by up to 3 hours. However, removing this light completely may seem nearly impossible in a digitally oriented world. As a compromise, consider purchasing a pair of blue light glasses that block the problematic blue light. You can also download an app on your phone or change the settings to change the screen's underlying color. Create a cutoff time of 30 minutes to an hour before bed, during which you might read a book, tidy your home, or prepare for bed. 

Soak up the sun to combat sleep disorders and mental illness

If blue light makes you less sleepy, sunlight may be part of the solution. Spending time in sunlight can be a mood booster. In addition, bright morning sunlight helps your body shift its circadian rhythm to an earlier bedtime so you can fall asleep faster at night. If you cannot make it outside, try to eat breakfast near a sunny spot in your house or spend an hour working on the patio.

Don't work in bed and limit bed to a few activities only

It may feel tempting to lounge on your bed to study or work, but if you're having trouble sleeping, try to keep your bed limited only to sleep and intimate activities with a partner. Keeping your bed limited to a few activities trains your mind to understand that it isn't a place for productive or awake energy. 

Try not to linger when you cannot sleep

On nights you struggle to sleep, laying in bed for hours may lead to negative associations with sleep, which can make it more difficult. If sleep has been eluding you for 30 minutes or more, get up and try another activity, like getting water, reading a book, or taking a bath. Then, try to come back and sleep again. 

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Talk to a professional if you’re experiencing depression or sleep problems

If you are concerned that your insomnia is related to an underlying mental health condition, consider contacting a licensed therapist for support. You can also talk to a professional if you believe your sleep disturbances are due to a temporary stressful situation or for reasons unknown. Therapists are trained in sleep psychology and can help you set up a healthy schedule and discover the potential causes of your insomnia. 

For some people, setting up appointments and traveling to an office for therapy can be difficult due to barriers like cost or distance. In these cases, online therapy through a platform like BetterHelp may offer an alternative. Online, you can set up a time that is convenient for you and in a comfortable space of your choosing. 

In a review published in the Cureus Journal of Medical Science, researchers evaluated the efficacy of online cognitive-behavioral therapy (CBT) to manage the symptoms of stress-related conditions and mental illness. The study revealed that online therapy could be cost-effective and as effective as in-person options.  

Takeaway

Stress is one of the reasons some people struggle to fall asleep or experience interrupted sleep during the night. If you are ready to experience a longer and more restful sleep, consider reaching out to a therapist while implementing healthier sleep hygiene practices in your daily schedule. You're not alone, and insomnia is often treatable.
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