Depression and Sleep: What You Need to Know

Written by Rachel De La Merced and reviewed by Board Certified Psychiatric Nurse Practitioner Kate Filippelli, PMHNP who specializes in evidence-based psychiatry practices with personalized treatment plans for all mental health challenges, including psychiatric medication management, research-based supplements and behavioral interventions for major depressive disorder, bipolar disorder, anxiety, panic, OCD, ADHD and eating disorders.

 

Sleep and depression are closely connected. Sleep disturbance is one of the most common and clinically important features of depression – present in up to approximately 90% of patients – and the relationship is bidirectional. Poor sleep can be both a symptom of depression and an independent, modifiable risk factor for developing depression. In a large U.S. epidemiological sample of people experiencing a major depressive episode, 92% reported at least one sleep complaint, 85% had insomnia, 48% had hypersomnia, and 30% had both. [1-3]

Because sleep problems can come before, accompany, and continue after a depressive episode, paying attention to sleep can provide important information about someone’s overall mental health. Sleep problems may even continue after other symptoms improve, increasing the risk of relapse. [10-11]

In our clinical experience at Remedy Psychiatry, we often see patients who initially present with concerns about sleep rather than depression itself. They may describe months of insomnia, oversleeping, or waking up exhausted without realizing that these changes may be part of a larger depressive picture.

How Depression Can Disrupt Sleep

Depression can affect both the amount of sleep you get and the quality of that sleep. Some people have difficulty falling asleep or staying asleep, while others sleep considerably longer than usual.

As a psychiatric nurse practitioner at Remedy, I often see how differently depression can affect sleep from one person to another. Some patients are frustrated because they cannot sleep despite feeling exhausted, while others are sleeping excessively and still feel completely depleted. Understanding that both patterns can occur with depression is an important part of evaluating the full clinical picture.

 

Insomnia is the predominant sleep complaint in depression, reported by roughly 75% of depressed patients. It can involve difficulty falling asleep, frequent nighttime awakenings, or waking earlier than intended and being unable to return to sleep. [3-4] Early-morning awakening is particularly associated with melancholic depression.

On the other hand, hypersomnia involves excessive sleepiness or sleeping for unusually long periods. Oversleeping and daytime fatigue are more characteristic of atypical depression and are also more common in younger people and those experiencing bipolar depression. [4-5]

These differences can make depression and sleep symptoms look very different from one person to another. Someone with depression may be exhausted after barely sleeping, while another person may sleep for 10 hours and still feel like they could stay in bed all day.

Depression can also affect the structure and timing of sleep. Research using sleep studies and activity monitoring has found changes in REM sleep, deep sleep, sleep continuity, and circadian rhythms in people with depression. [4, 6-8] These changes can contribute to the experience of depression fatigue, difficulty concentrating, and low energy during the day.

Why Sleep Problems and Depression Can Reinforce Each Other

The relationship between sleep and depression goes in both directions. Depression can make it harder to sleep, while ongoing sleep problems can increase vulnerability to depression.

A meta-analysis of 34 cohorts involving more than 150,000 participants found that insomnia roughly doubled the risk of subsequently developing depression. Studies using stricter definitions of insomnia found nearly three times the odds of developing depression. [1, 9]

The connection is also reciprocal: people with depression have a higher risk of developing insomnia later, while people with insomnia have a higher risk of developing depression. [3, 9]

Other sleep and circadian problems – including hypersomnia, unusually short or long sleep duration, obstructive sleep apnea, restless legs syndrome, and an evening-oriented sleep schedule – have also been associated with an increased risk of future depression. [9]

This helps explain why improving sleep can be an important part of depression treatment, rather than something that should only be addressed after mood symptoms have resolved.

What Does Depression Feel Like When Sleep Is Affected?

If you are wondering what does depression feel like?, disrupted sleep can be one of the most noticeable parts of the experience.

Depression may feel like waking up exhausted despite getting enough hours of sleep or struggling to get out of bed. Others may experience racing thoughts at night or sleep difficulty.

Sleep-related depression symptoms can also contribute to a cycle in which poor sleep makes it harder to concentrate, exercise, socialize, or complete everyday responsibilities. Those difficulties can then reinforce feelings of frustration, guilt, or low self-worth.

Depression does not always look like sadness, either. Depression irritability can become more noticeable when someone is chronically sleep deprived. Increased frustration, anger, or sensitivity may be interpreted as a sleep problem alone when depression is also contributing.

Depression Fatigue Is Not Always Just Sleepiness

It is common to assume that feeling tired means you simply need more sleep. However, depression fatigue can be different from ordinary sleepiness.

Depression-related fatigue may involve:

• Low physical energy
• Mental exhaustion
• Difficulty getting started on tasks
• Reduced motivation
• Trouble concentrating
• Feeling physically heavy or slowed down
• Needing significantly more effort to complete everyday activities

Someone can sleep for a long time and still experience profound fatigue. This is especially relevant when hypersomnia occurs as part of atypical depression. [4-5]

At the same time, persistent fatigue should not automatically be attributed to depression. Sleep apnea, anemia, thyroid problems, medication effects, and other medical conditions can also cause significant tiredness. A healthcare professional can help determine whether sleep, depression, another medical condition, or several factors are contributing.

Depression, Burnout, and Sleep Problems

It can also be difficult to distinguish depression vs burnout when exhaustion and poor sleep occur together.

Burnout is generally associated with prolonged stress, particularly chronic workplace stress. Depression, however, can affect mood, motivation, sleep, energy, and interest across multiple areas of life, including when someone is away from work.

The two can also occur together. Someone experiencing burnout may begin sleeping poorly and eventually develop symptoms of depression, while someone with depression may initially assume their exhaustion is simply the result of work stress. If sleep problems and exhaustion continue even when you are away from the source of stress, it may be worth considering whether depression or another condition is contributing.

Sleep, Seasonal Depression, and Atypical Symptoms

Sleep changes can also provide clues about specific depressive patterns.

Seasonal affective disorder is a form of depression that follows a recurring seasonal pattern. People with winter-pattern seasonal depression may experience increased sleep, low energy, social withdrawal, difficulty concentrating, and increased appetite or carbohydrate cravings.

This can overlap with atypical depression, which may involve hypersomnia, increased appetite, weight gain, and mood reactivity. Recognizing these patterns can help a psychiatric provider determine whether symptoms may represent a particular depressive presentation rather than simply poor sleep or seasonal tiredness.

Can Depression Go Away If Sleep Improves?

Improving sleep can make a meaningful difference, but better sleep alone does not necessarily resolve depression.

Research suggests that treating insomnia may improve depressive symptoms and could potentially reduce the likelihood of future depressive episodes. [2, 11] This is one reason sleep should be addressed even when someone is already receiving treatment for depression.

If you are wondering can depression go away?, some mild depressive episodes can improve over time, but persistent or moderate-to-severe depression may require active treatment. Ongoing sleep problems can also make recovery more difficult and increase the risk of relapse. [10-11]

Knowing when to seek help for depression is especially important when sleep problems persist alongside significant mood changes, loss of interest, hopelessness, impaired functioning, or thoughts of self-harm.

Treating Sleep Problems When You Have Depression

Treatment depends on the type and severity of sleep disturbance and the broader clinical picture. In our clinical practice at Remedy Psychiatry, medication selection is individualized based on the patient’s entire symptom profile, including their sleep pattern. For example, someone struggling with significant insomnia may have different treatment considerations than someone who is already sleeping excessively, so we look beyond the diagnosis alone while also considering possible medical contributing factors when developing a medication plan.

Non-pharmacologic approaches are generally first-line for sleep problems associated with depression. Cognitive behavioral therapy for insomnia (CBT-I) has strong evidence for improving sleep and can also improve depression severity. Exercise can also benefit both sleep and mood, while consistent sleep habits provide a useful foundation. [12, 13]

Bright-light therapy may provide additional benefit, particularly for seasonal affective disorder or when someone’s sleep-wake schedule has shifted. It may also be used alongside antidepressant treatment in some cases. [12-13]

Medication can also affect sleep, so antidepressant selection should take a person’s sleep pattern into account. Some antidepressants are more sedating, while others may be more activating. Mirtazapine, for example, can improve sleep continuity but commonly causes sedation and weight gain. Trazodone may also help with sleep but can cause daytime grogginess, dizziness, and nausea. [6, 10, 14-15]

Conversely, some SSRIs and SNRIs can contribute to insomnia in certain people. The goal is not simply to choose the “most sedating” medication, but to select treatment based on the person’s depressive symptoms, sleep pattern, other medical or psychiatric conditions, previous treatment response, and potential side effects.

Sleep medications such as benzodiazepines and Z-drugs may sometimes be used for short-term insomnia, but they generally do not provide a long-term solution for depression and should be used cautiously. [12]

Why Treating Sleep Matters Even After Depression Improves

One of the most important points about depression and sleep is that sleep problems do not necessarily disappear when mood improves.

Residual insomnia after depression treatment is associated with an increased risk of relapse. [10-11] For this reason, continuing to have difficulty sleeping after other depressive symptoms have improved is worth discussing with a healthcare professional.

Sleep problems can also occur with persistent depressive disorder, a chronic form of depression in which symptoms continue for an extended period. When insomnia, oversleeping, or nonrestorative sleep persists alongside long-term low mood, low energy, or loss of interest, it may be part of the depressive condition rather than an isolated sleep problem.

Likewise, persistent oversleeping or daytime sleepiness should not automatically be considered a sign that someone simply needs more rest. It may be a residual symptom of depression, part of atypical depression, related to another sleep disorder, or associated with a different medical or psychiatric condition.

The Bottom Line

Sleep and depression have a complicated, two-way relationship. Insomnia, hypersomnia, disrupted sleep quality, and circadian changes can all occur alongside depression, and persistent sleep problems can increase the risk of developing or experiencing another depressive episode. [1, 11]

If you are struggling with exhaustion, insomnia, oversleeping, or changes in your sleep schedule, consider the bigger picture. Depression fatigue, low motivation, loss of interest, irritability, and mood changes may indicate that something more than poor sleep is occurring.

At Remedy Psychiatry, we often remind patients that they do not have to simply accept chronic insomnia, oversleeping, or waking up exhausted as their new normal. 

A comprehensive evaluation can help determine whether sleep disruption is a symptom of depression, a contributing factor, a separate sleep disorder, or some combination of these issues. With the right approach to depression treatment, both mood and sleep can be addressed as part of the same overall plan.