“All I Want To Do Is Sleep”: Exploring Sleepiness, Sleep Disorders, And Mental Health

Medically reviewed by Corey Pitts, MA, LCMHC, LCAS, CCS
Updated March 28th, 2025 by BetterHelp Editorial Team

Like food and water, sleep is critical to our survival. We need it to flush toxins from our nervous system, repair cellular damage from everyday wear-and-tear on our bodies, and regulate our emotions. When we don’t get enough quality sleep, it can significantly impact our overall health. 

So what does it mean when someone gets plenty of sleep at night but still feels like all they want to do is sleep during the day, too? While most people experience a bit of daytime sleepiness at some point, persistent sleepiness that interferes with judgment and daily functioning may indicate a more serious issue. Read on to explore the potential reasons why someone might experience excessive daytime sleepiness (EDS), how to handle it, and how to cultivate healthier sleep patterns.  

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Sleep and mental health are linked

“All I want to do is sleep”: What is excessive daytime sleepiness?  

Excessive daytime sleepiness (EDS), also called hypersomnia, is when one regularly feels extreme or overwhelming sleepiness during the day—regardless of how much one has already slept. In some cases, its cause is unexplained (called idiopathic hypersomnia). In others, a medical professional may be able to identify an underlying cause. 

There are two types of hypersomnia: 

  • Primary hypersomnia arises independently, without another condition causing it. Idiopathic hypersomnia, Kleine-Levin syndrome, and narcolepsy are the three types of primary hypersomnia. 
  • Secondary hypersomnia is caused by another condition or environmental issue, such as a sleep disorder or a mental health condition. 

Sleep disorders and medical conditions that may contribute to EDS

Sometimes, EDS results from other conditions that disrupt the sleep cycle, such as obstructive sleep apnea, restless legs syndrome, or insomnia. Underlying medical conditions such as hypothyroidism, diabetes, chronic fatigue syndrome, anemia, and chronic pain can cause it, too. 

Because of the bidirectional relationship between sleep and immune regulation (called sleep-immune crosstalk), researchers are exploring a possible connection between hypersomnia and an underlying imbalance in immune signaling caused by chronic inflammation or autoimmune disorders. Such disorders can interfere with the deep sleep the body needs to refresh and store energy. 

Mental health conditions and excessive daytime sleepiness

Sleep and mental health can significantly impact each other. While conditions like anxiety and depression can sometimes cause nighttime insomnia and trouble sleeping, they might also contribute to increased sleep duration and resulting fatigue during the day. Excessive sleep itself can also negatively impact mental well-being, potentially contributing to or exacerbating symptoms of mental disorders.

Depression and hypersomnia  

Depression is one of the mental health conditions most commonly associated with excessive sleepiness. According to research, approximately 25% of people with major depressive disorder exhibit hypersomnia as a symptom. Sleep disturbances, including excessive sleep, can worsen depressive symptoms, creating a cycle where oversleeping leads to lower energy levels, reduced motivation, and withdrawal from daily life.

Anxiety and sleep disruptions  

Anxiety disorders are typically linked to insomnia, which can lead to poor sleep quality and cause chronic fatigue. Or, some individuals with anxiety may experience excessive sleepiness due to emotional exhaustion from constant worry and stress. Chronic anxiety can also increase the body’s production of the hormones cortisol and testosterone, which can interrupt a person’s natural sleep-wake cycle. This effect may make it harder to feel refreshed—even after long periods of sleep.  

Bipolar disorder and sleep dysregulation 

The extreme highs and lows of bipolar disorder can also cause significant sleep dysregulation. During periods of mania, people with bipolar disorder often experience insomnia. During depressive periods, hypersomnia is common. Research also suggests that hypersomnia is more common in people with bipolar disorder than those with unipolar depression. Sleep irregularities in bipolar disorder can further destabilize mood and increase the risk of relapse into manic or depressive states.  

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Too much sleep and emotional regulation  

Excessive, prolonged sleep can disrupt brain activity and hormonal functioning, negatively impacting emotional regulation. As a result, individuals with EDS might experience increased irritability and mood swings. Too much sleep can also disrupt the function of the prefrontal cortex and amygdala, both of which play a role in emotional control and decision-making.

Lifestyle and environmental factors that may contribute to excessive sleepiness symptoms

For some, EDS isn't caused by a medical issue but is linked to external factors. For example, insufficient sleep, shift work, and jet lag can lead to excessive sleepiness. Lifestyle factors like eating patterns and exercise can impact sleep too, as can the use of alcohol, drugs, and some types of over-the-counter and prescription medication. Environmental factors like noise, light, pollution, traffic, and other environmental disorders can play a role in sleep quality as well.

Excessive daytime sleepiness from burnout  

EDS is also linked to burnout syndrome, a condition experienced by some individuals working or living in physically and mentally demanding circumstances. Individuals with burnout syndrome might experience extreme sleepiness as the body tries to recuperate from extreme mental and physical fatigue. People experiencing burnout might also sleep excessively as a means of “escape” from chronic stress and overwhelm. 

What can you do about excessive sleepiness?

Determining if you have EDS and identifying the cause is generally foundational to coping with it. EDS is not the same as feeling sleepy during the day sometimes; it's typically more severe, and people who have it often have trouble functioning during the day, regardless of how much sleep they've gotten. Some people experiencing such symptoms find it helpful to track them by keeping a daily sleep journal to try and isolate the cause. 

Improving sleep hygiene

To combat excessive sleepiness, you might try establishing a consistent sleep schedule by going to bed and waking up at the same times every day. Keep your bedroom cool, dark, and quiet to create a sleep-friendly environment. Consider also establishing a calming bedtime routine with activities like reading, listening to relaxing music, or taking a warm bath before bed. 

Lifestyle adjustments for EDS

In addition to changing your sleeping habits, it can be helpful to cultivate nutrient-dense eating patterns, stay hydrated, and incorporate regular exercise into your routine. It’s also recommended that you limit caffeine intake later in the day, since caffeine too close to bedtime can interfere with your ability to fall asleep—as can alcohol and heavy meals close to bedtime. Experts also advise getting plenty of natural sunlight exposure, if possible, to regulate your circadian rhythm, and to manage stress with relaxation techniques like meditation or deep breathing. 

When to seek professional help  

You might consider seeing your doctor or a sleep medicine specialist if you are:

  • Frequently feeling tired throughout the day—even after getting enough sleep
  • Having trouble focusing during the day due to fatigue
  • Experiencing significant negative impacts on your daily activities, like work
  • At risk of dangerous situations due to your sleepiness (such as feeling drowsy while driving)

Particularly if you unintentionally doze off while driving, watching TV, or during conversations and/or experience memory problems, mood swings, and frequent headaches, it can be important to seek professional help. 

During a medical consultation, your provider will usually ask detailed questions about your sleep schedule, bedtime routine, and other factors. They may do a physical examination to check for underlying medical conditions and perhaps recommend a sleep study. 

Therapy to address symptoms of sleep disorders and mental health conditions

Excessive daytime sleepiness can be difficult to cope with. It can hinder your productivity and relationships, and it can be physically and mentally uncomfortable when you are “supposed” to be awake but your body wants to sleep. If you think you may be experiencing hypersomnia or another medical symptom or condition, it’s recommended that you meet with your healthcare provider. If you think EDS may be associated with stress or emotional difficulties, your treatment may include speaking with a mental health professional.

Cognitive behavioral therapy (CBT) is an example of a talk therapy modality that can be an effective treatment for excessive daytime sleepiness. This may be particularly true when EDS stems from underlying sleep disorders like insomnia, which is common in people with mental health conditions. CBT for sleep issues, like CBT-I (cognitive behavioral therapy for insomnia), focuses on teaching healthy sleeping habits and equipping the client to shift negative thoughts and beliefs related to sleep that may exacerbate daytime sleepiness.

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Sleep and mental health are linked

Exploring the option of online therapy when you’re feeling like “All I want to do is sleep”

Despite its potential effectiveness, some people experiencing EDS or other sleep challenges like insomnia don’t seek help from a therapist. It isn't always easy to find a therapist specializing in CBT-I, and if there are specialists in a person’s area, scheduling constraints might make it challenging for them to attend in-office appointments. 

Online therapy can be a convenient solution to such barriers. With online therapy, a person can connect with a therapist from a broader pool of mental health professionals with varying backgrounds and areas of expertise. Clients can attend remote sessions with a licensed therapist from the comfort of home on a schedule that fits their needs.

Plus, research suggests that online CBT-I can often be as effective as in-person CBT-I. For example, one randomized controlled trial surveyed fifty-three participants with sleep impairments. Its findings suggest “significant improvements in subjective as well as objective sleep measures after the administration of a six-week internet-based CBT-I program” for insomnia treatment. 

Takeaway

Sleep health is integral to overall well-being, but it can be challenging to establish and maintain. This can seem like an even larger challenge for people who experience excessive daytime sleepiness. However, with some lifestyle changes and help from a healthcare professional, it can be possible to sleep well at night and feel refreshed throughout the day.
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