Nightmare Disorder

Nightmare disorder is a sleep condition characterized by repeated vivid nightmares that can cause fear of sleep and daytime distress, negatively affecting work, social relations, and overall functionality. These nightmares typically occur later in the night, leaving the individual distressed and alert upon waking, with emotions potentially lingering for extended periods of time.
Star Gorven

Written by: Star Gorven on March 19, 2026

Morgan Blair

Reviewed by: Morgan Blair on April 1, 2026

Updated On: April 1, 2026

8-10 mins read

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Key Takeaways

  • Nightmare disorder is characterized by recurring nightmares that disrupt sleep and lead to daytime dysfunction. These distressing dreams often occur several hours after falling asleep, leaving individuals in a state of heightened arousal upon awakening, and tend to cause distress that lingers throughout the following day.

  • Symptoms include frequent, prolonged, and intensely disturbing dreams that typically involve threats to safety. Additionally, nightmare disorder can cause fatigue and impaired cognitive abilities, along with other symptoms that can significantly impact daily and nightly well-being.

  • Treatment for nightmare disorder primarily revolves around psychotherapy, with common therapies including cognitive behavioral therapy (CBT), imagery rehearsal therapy (IRT), and hypnotherapy, while some medications show promise.

Understanding Nightmares and Their Impact

Most people spend approximately two hours dreaming each night, and while the purpose of dreams remains unclear from a scientific perspective, the leading theory suggests that they help the brain process emotions (such as overwhelming fear and anxiety), in order to make sense of experiences, and form memories. [1]

While some dreams can be enjoyable, others can be deeply unsettling - and may even include disturbing content. Nightmares are terrifying, typically lengthy dreams that are so intense and realistic that they cause the individual experiencing them to wake up from sleep, with most people remembering their nightmares in vivid detail after awakening. [1] [2]

The distressing emotions from nightmares can linger long after waking, making it difficult to fall back to sleep and affecting one’s emotional equilibrium during the day. These unpleasant dreams typically occur during rapid eye movement (REM) sleep, a stage of the sleep cycle when the brain is highly active, similar to an awakened state. [1] [2]

Nightmares are often brought on by stress, major life changes, and trauma (whether past or present). In fact, after a traumatic event, some nightmares may recreate the distressing experience, though most do not replicate the exact event. Common themes of nightmares include failure, attempts to escape, facing danger, having a close call with death, or feeling helpless.[1] [2]

In light of the highly distressing content of nightmares, these terrifying dreams can trigger the body’s natural fight-or-flight response, in the same way that it would during waking life. As a result, it is not uncommon to wake from a nightmare soaked in sweat, with a racing heart, feeling suspended in a state of hypervigilance. [1]

When Nightmares Become a Disorder

Having a nightmare once in a while is generally not a cause for concern. However, when recurring nightmares begin to disrupt sleep and affect daily life, it can indicate the presence of nightmare disorder. This disorder involves repeated, vivid nightmares that lead to difficulties with sleep and daily functioning, along with an overwhelming fear of falling asleep. [1]

Technically, nightmare disorder is a type of parasomnia, which is a category of sleep disorders defining unpleasant and abnormal experiences that occur during sleep, while falling asleep, or while waking up. Although frequent nightmares are the key feature of nightmare disorder, it is important to note that not everyone who experiences nightmares has the condition. [1]

As a matter of fact, the disorder is characterized by repeated, long-lasting nightmares that typically involve scenarios featuring severe threats to the dreamer’s well-being. These nightmares typically occur several hours after falling asleep, causing the dreamer to awaken feeling disturbed, often recalling their dreams in vivid detail. [1]

The severity of this condition can range from occasional episodes (with weeks between occurrences) to nightly disturbances that cause a person to deeply fear sleep. In light of the impact on sleep and ongoing distress caused by the disorder, it can significantly impact functionality. [1] [2]

Is it the Same as Night Terrors?

Nightmare disorder is different from night terrors, although the terms imply similar symptoms, and both involve waking up fully or partially with feelings of intense fear and with physical symptoms (such as a racing heart). However, the key difference is that people experiencing night terrors often scream, thrash, or sleepwalk, unlike those with nightmare disorder. [1] [2]

Additionally, the distressing dreams that manifest as a key symptom of nightmare disorder usually occur later at night, with clear recall of the terrifying content. On the other hand, sleep terrors tend to manifest earlier in the night (lasting from a few minutes to over half an hour), and an individual typically does not remember the terrifying dream in vivid detail. [1] [2]

During night terrors (although moving, speaking, or screaming), the individual is not fully awake and is likely to be confused and disorientated. Furthermore, the dreamer is typically difficult to wake during an episode, and upon eventual awakening, is often completely unaware of the experience witnessed by others. [1] [2]

Symptoms of Nightmare Disorder

According to the Diagnostic and Statistical Manual for Mental Disorders, Fifth Edition (DSM-5), which is considered the gold standard for diagnosing mental health disorders worldwide, nightmare disorder can be diagnosed if a person struggles with recurring nightmares that impact daily functionality. The disorder ranges in severity from mild to severe as follows: [2]

  • Mild: Fewer than one episode per week on average

  • Moderate: One or more episodes per week but not occurring nightly

  • Severe: Nightmares occur nightly

Symptoms

The DSM-5 lists the following criteria for diagnosing nightmare disorder: [2]

  • The individual experiences repeated episodes of extended, extremely disturbing, and vividly remembered dreams

  • The nightmares tend to involve attempts to escape threats to safety or survival, and most often occur during the second half of the sleep period

  • Upon awakening from these disturbing dreams, the individual is instantly fully alert and lucid

  • The sleep disturbances result in impaired functionality (socially, occupationally, or in other important areas of functioning) as well as significant distress

  • The symptoms are not attributable to the effects of a substance, coexisting mental disorders, medical conditions, or other sleep disorders

In addition to the symptoms listed above, recurring, prolonged nightmares often lead to a range of symptoms that can impact sleep: [1]

  • Fear of falling asleep: Repeated nightmares can lead to an intense fear of falling asleep (known as somniphobia). This anxiety may lead individuals to delay going to sleep or to sleep in a well-lit room, which can further disrupt healthy sleep patterns.

  • Reduced sleep quality and duration: Nightmares cause abrupt awakenings along with hypervigilance (a heightened state of alertness). This not only decreases the length of sleep but also makes it challenging to return to sleep, leading to less restorative rest.

  • Sleep disruption for others: Individuals who awaken distressed from nightmares may also disturb the sleep of partners, children, or caregivers. Sleep disruption is particularly common for caregivers of children who often require reassurance after a nightmare.

  • Development of insomnia: Persistent nightmares can contribute to insomnia (a condition marked by difficulty initiating or maintaining sleep), further worsening overall well-being and functionality.

Disrupted sleep and emotional distress resulting from nightmare disorder can lead to significant functional impairments during waking hours, including: [1]

  • Ongoing emotional distress: Recurrent nightmares often result in lingering negative emotions, with the distress experienced during realistic nightmares persisting long after an individual has awoken.

  • Daytime sleepiness and fatigue: Sleep disruption caused by delayed sleep onset, frequent awakenings, and poor sleep quality can lead to daytime fatigue and reduced energy levels.

  • Cognitive impairment and functional decline: Individuals may experience difficulties with concentration and memory after nightmares, which can negatively impact performance in daily activities, including work, school, and household responsibilities.

Who is Likely to Suffer from Nightmare Disorder?

Although the exact causes of nightmares and nightmare disorder are not fully understood, certain individuals are more vulnerable to nightmare disorder than others. Factors including emotional overwhelm, trauma, sleep disorders or disturbances, co-occurring psychiatric conditions, a family history of nightmares, alcohol use, and chronic pain are often present in people who suffer from persistent nightmares. [3]

Trauma Survivors

Unsurprisingly, trauma survivors (such as war veterans), and particularly those with posttraumatic stress disorder (PTSD), are at a higher risk of developing nightmare disorder.

In these cases, nightmares often manifest in the form of traumatic memories, which can cause ongoing distress and sleep disruption for people who have survived trauma. [3]

People with Sleep Difficulties

Individuals with insomnia, narcolepsy, or other serious sleep abnormalities are also more likely to struggle with recurring nightmares. In light of the link between sleep disorders and co-occurring psychiatric conditions, many individuals with mental health conditions report nightmares as a distressing symptom. These conditions disrupt normal sleep patterns and can increase emotional reactivity during sleep. [3]

Individuals with Co-Occurring Psychiatric Conditions

Heightened arousal stemming from distress and disrupted sleep is associated with a range of psychiatric symptoms that share overlapping features with nightmare disorder. These include personality disorders, mood disorders, psychosis, PTSD, depression, and insomnia. Additionally, a negative self-image (which is common in depressive disorders) has been specifically linked to recurring nightmares. [3]

People with a Family History of Nightmares

Research has revealed that people with family members who struggle with frequent nightmares are more likely to manifest the disorder due to shared genetic or environmental factors. In other words, when it comes to developing nightmare disorder, evidence of familial patterns suggests a potential inherited vulnerability. [3]

Individuals Affected by Alcohol Use and Chronic Pain

Those with a history of alcohol use, along with individuals currently using alcohol, are at a higher risk of manifesting increased nightmare frequency as well. Furthermore, people who suffer from chronic pain (such as frequent headaches) are also more likely to struggle with repeated nightmares. [3]

Causes

While the precise cause of nightmare disorder remains unknown, it is thought to arise from a combination of abnormal brain function, physical factors, and psychological dysfunctions. Additionally, emerging research has identified a link between sleep disorders, mental health conditions, genetics, and heavy alcohol use. [4]

Brain Function Abnormalities

  • Hyperarousal theory: Increased hyperarousal (a feeling of fearful alertness often presenting in conditions such as PTSD and insomnia) is thought to contribute to nightmare disorder. This hyperarousal may persist during the night and disrupt healthy dream processing. [4]

  • Impaired fear processing: Nightmares may persist when an individual’s brain circuits fail to regulate emotions and integrate fear-related memories into new, less threatening contexts. In light of this, it is thought that people with high emotional reactivity may be particularly vulnerable to developing nightmare disorder. [4]

Physical Influences

  • Sleep-disordered breathing: Conditions such as obstructive sleep apnea, central sleep apnea, and upper airway resistance syndrome can lead to frequent awakenings during the night. These disruptions interfere with rapid eye movement (REM) sleep and may increase the intensity or frequency of nightmares. [4]

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  • Certain medications: Pharmaceuticals (particularly those that affect REM sleep) or alter the natural levels of brain chemicals can lead to repeated and particularly vivid nightmares. Withdrawal from these medications can also disturb sleep patterns and REM stability, often worsening the occurrence of nightmares. [4]

Psychological Factors

  • Trauma and childhood adversity: Research suggests that unresolved childhood trauma may shape both memory and dream content. This is thought to be due to the fact that early life stress can disrupt the emotional regulation pathways in the brain, increasing the risk of persistent nightmares.

  • Personality trait susceptibility: A selection of individuals are more sensitive to emotional stimuli due to personality traits such as neuroticism. This vulnerability may increase the risk of developing nightmare disorder, but can also enhance responsiveness to positive interventions like mindfulness and supportive relationships. [4]

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  • Maladaptive cognitions: Avoidance-based coping strategies, along with mental overwhelm, can worsen nightmare occurrence. In other words, attempts to suppress unwanted thoughts or emotions may cause “dream rebound,” where these patterns return vividly in nightmares that increase in frequency. [4]

The precise cause of nightmare disorder is not known, with ongoing investigations aiming to identify the specific types of brain cells involved in causing nightmares. While scientists have discovered links between nightmare disorder, sleep disorders, and psychiatric disorders, it remains unclear whether nightmares are a result of these conditions or vice versa. [3]

One theory proposes that nightmares and insomnia often occur together due to the fact that they both manifest symptoms during rapid eye-movement sleep. It is currently known that nightmares tend to occur during REM sleep, and that this stage of sleep is more unstable in insomniacs, causing the brain to take longer to process emotional distress. [3]

Recent research has also revealed that both insomnia and nightmares could be influenced by the same genes, with genetic differences found in around 35% to 50% of individuals who experience nightmares. Additionally, these genes may be connected to mental health issues like anxiety, depression, schizophrenia, borderline personality disorder, PTSD, and insomnia. [1][3]

This suggests that nightmares and these psychiatric issues could be influenced by the same underlying causes. However, these results were found to be inconclusive after heavy drinkers were removed from the investigation, suggesting a strong link between alcohol use, mental health conditions, genetic makeup, and nightmare disorder. [3]

Mental Health Conditions Linked to Nightmare Disorder

Nightmare disorder can emerge without a co-occurring psychiatric disorder, but has been found to have strong links to both medical and mental health conditions. PTSD, in particular, is associated with recurring nightmares; however, disturbing dreams have been linked to numerous psychological conditions, including: [2]

Posttraumatic Stress Disorder (PTSD)

PTSD develops after experiencing or witnessing a traumatic event and leads to symptoms such as repeated distressing flashbacks, heightened anxiety, and nightmares. In fact, over 70% of individuals with PTSD experience recurrent trauma-related nightmares, which are not necessarily confined to REM sleep and can also occur during sleep onset. [2]

Associated Mental Health Conditions

Psychiatric disorders can alter the sleep cycle in ways that increase the risk of nightmares and the potential development of nightmare disorder. Frequent nightmares have been observed in various mental health conditions, including, but not limited to, the following: [1] [2] [3]

  • Mood disorders (including depression)

  • Anxiety disorders (including panic disorder)

  • Personality Disorders (including borderline personality disorder)

  • Psychotic disorders (including schizophrenia)

  • Trauma and stressor-related disorders (including PTSD and acute stress disorder)

  • Adjustment disorders

  • Grief during Bereavement

  • REM Sleep Behavior Disorder

  • Insomnia

  • Narcolepsy

Can Neurological Disorders Cause Nightmares?

Parkinson’s disease has been linked to changes in dreams and often results in more frequent nightmares. However, it remains unclear as to whether these disturbing dreams appear before the onset of Parkinson's or after the condition has developed. That said, scientists are currently investigating the brain mechanism behind this link. [5] [6]

Studies have already revealed that nightmares are connected to certain brain areas (especially the amygdala and prefrontal cortex) in terms of how these work together to regulate emotions. The amygdala is responsible for recognizing and learning fear, while the prefrontal cortex works to manage and express it. [6] [7]

In healthy individuals, the prefrontal cortex soothes the amygdala during stress, but when this system is out of balance, it can lead to nightmares. Other parts of the brain, such as the hippocampus and brainstem, also play roles in shaping the fear response in dreams. These brain areas form a network that may affect how often and how severely an individual has nightmares. [7]

This theory, which is known as the "Affect Network Dysfunction" model, not only suggests that more frequent and intense nightmares occur when these brain areas are dysfunctional, but that the link is stronger when these brain abnormalities were caused by childhood trauma. Experts are still debating how much the brain regulates emotions during sleep, and the connection between neurological disorders and nightmares is not well understood.[6] [7]

Risks and Complications

While nightmare disorder can occur without co-occurring mental or physical health diagnoses, it is relatively rare for the condition to exist in isolation. Instead, nightmare disorder frequently manifests alongside various psychiatric and medical conditions, which can unfortunately complicate diagnosis and treatment. [8]

Co-Occurring Mental Health Disorders

  • Post-traumatic stress disorder (PTSD): PTSD is the most common psychiatric condition linked to nightmare disorder. These nightmares may feature trauma-related content or even seem unrelated, and often interact with other PTSD symptoms in a worsening cycle. [8]

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  • Anxiety disorders: Conditions such as generalized anxiety disorder and panic disorder often co-exist with nightmare disorder. Like those with PTSD, individuals with anxiety disorders tend to experience more frequent nightmares, which can, in turn, heighten the symptoms of anxiety. [8]

  • Depression: Frequent nightmares are also linked to depressive symptoms. In fact, research suggests a strong association between nightmare frequency and depression, which, like anxiety and PTSD, can potentially worsen each other and cause a vicious cycle. [8]

  • Substance use disorders: Substance abuse (particularly the heavy use of alcohol) is linked to an increase in nightmare frequency. Furthermore, withdrawal from alcohol can trigger vivid and disturbing dreams, potentially worsening nightmare disorder, and potentially lead to a progression in alcohol abuse. [8]

Co-existing Physical Health Conditions

  • Sleep-disordered breathing: Nightmare frequency may increase in people with sleep-disordered breathing (including sleep apnea). Although the cause for this remains unclear, disrupted breathing and sleep fragmentation have been linked to the occurrence of nightmares. [8]

  • Chronic insomnia: There is a strong link between insomnia and nightmare disorder, with the fear of nightmares often leading to sleep avoidance or challenges with falling back to sleep after a disturbing dream, which can contribute to long-term sleep deprivation. [8]

  • Neurodegenerative disorders: Conditions such as Parkinson’s disease are frequently accompanied by REM sleep behavior disorder (RBD), which can involve vivid and frightening dreams accompanied by physical movements during sleep. [8]

Additional Complications

  • Daytime fatigue and cognitive impairment: Ongoing sleep disturbances from recurring nightmares can result in significant impairment of daytime wakefulness, attention span, and memory. [8]

  • Mood disturbances: The intense emotions experienced in nightmares tend to linger for extended time periods after waking, and can cause mood instability, irritability, and even worsen underlying mood disorders. [8]

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  • Relationship and work difficulties: As with other sleep and mental health disorders, the emotional and cognitive toll of symptoms such as sleep deprivation can negatively impact personal relationships and occupational functioning. [8]

  • Suicidal Ideation: Some studies indicate a link between frequent nightmares and an increased risk of suicidal thoughts, especially among individuals with comorbid PTSD or depression. [8]

Suicide Hotlines

If you or someone you know has reached the breaking point, you are not alone, and reaching out is the first step to experiencing life beyond your wildest imaginings. In the United States, you can call or text the Suicide & Crisis Lifeline at 988 for free, confidential support around the clock. For support outside of the U.S., you can find a list of international suicide prevention hotlines here.

How Common Is It?

Both adults and children have nightmares from time to time, with approximately 85% of adults reporting at least one annually, and up to 75% of children affected by these bad dreams. However, while having nightmares occasionally is considered normal, nightmare disorder is less common, impacting between 2% and 5% of adults in the United States. [1]

However, this statistic may not accurately reflect the prevalence of the condition, as nightmare disorder often goes unreported and, as a result, is left untreated. This is due to the fact that many individuals do not mention recurring nightmares to healthcare providers, and are unaware that frequent nightmares are a diagnosable disorder, and that effective treatment options exist. [1]

Diagnosing Nightmare Disorder

In a clinical setting, to be formally diagnosed with nightmare disorder, an individual must meet the criteria outlined in the DSM-5. The manual categorizes the condition according to severity, with mild cases experiencing less than one nightmare per week, moderate cases presenting with one or more nightmares per week, and severe cases presenting with nightly disturbances. [2]

The DSM-5 specifies the following symptoms for diagnosing nightmare disorder: [2]

  • Recurring nightmares that are prolonged and imprint a clear, lingering memory

  • Disturbing dreams that generally involve efforts to escape threats, and typically occur during the second part of the sleep period

  • Upon awakening from a nightmare, the dreamer is immediately alert and fully conscious

  • Impaired functionality in social interactions, at work, or in other essential aspects of daily functioning, along with significant distress

Tests and Assessments

Nightmare disorder cannot be diagnosed with a medical test. Instead, healthcare providers make the diagnosis based on a detailed discussion of the individual’s nightmares, related symptoms, and overall medical and mental health history. The most commonly used self-report tests are the Nightmare Disorder Index and the Nightmare Severity Index. [1] [9]

Nightmare Disorder Index

This questionnaire assesses the frequency, emotional impact, and real-life consequences of nightmares over the past month. The nightmare disorder index is designed to identify how often nightmares occur, the severity of distress caused, whether they lead to abrupt awakenings, and how much they impact daily functionality. [1]

Nightmare Severity Index {#nightmare-severity-index}

The nightmare severity index was modeled on the well-recognized insomnia severity index and aims to offer a simple yet comprehensive tool for assessing nightmares. The test includes questions based on DSM-5 criteria, designed to explore the frequency and content of nightmares, particularly in relation to trauma and PTSD. [9]

When to Seek Help

If you have been struggling with nightmares at least once a week, or if they regularly disrupt your sleep, cause a fear of sleep, disrupt emotional stability, or impair daily functioning, it is recommended to consult with a doctor or mental health professional in order to obtain a diagnosis and begin the treatment journey. If you suspect the nightmares could be linked to a new medication or recreational drug use, it is important to share these details with your healthcare provider. [1]

Treatment

Nightmare disorder often coexists with mental health disorders such as PTSD, depression, and anxiety. In light of this, addressing any underlying conditions can help lessen the intensity and frequency of nightmares while supporting overall mental health. In addition, there are specific therapeutic methods that can effectively target and treat nightmare disorder itself. [1]

Should mental health concerns form part of the equation when consulting with a sleep specialist, it is important to note that collaboration with a mental health professional is necessary if the specialist is not trained in psychological care. However, treatment for nightmare disorder tends to be most effective when guided by a sleep psychologist. [8]

Therapy

There are a variety of psychotherapies that have been found to benefit nightmare disorder. An evaluation and diagnosis by a psychiatrist or licensed mental health professional can help identify the most effective treatment options tailored to individuals struggling with the condition. Common therapies used to treat nightmare disorder include: [1]

Cognitive Behavioral Therapy (CBT)

CBT is commonly used to treat nightmare disorder, and works by educating individuals with the condition about how their thoughts and emotions can influence their dreams. It also addresses potential behaviors that may contribute to or relieve nightmares and disturbed sleep. [1]

Imagery Rehearsal Therapy (IRT)

Imagery rehearsal therapy is a specialized form of CBT and involves reimagining the recurring nightmare by visualizing the events or storyline into a new, more positive, and comforting narrative. [1]

Hypnotherapy

During hypnotherapy, a therapist guides the person with nightmare disorder into a deeply relaxed state and encourages them to imagine the perfect night of sleep. This process includes affirmations of safety and releasing any underlying need for nightmares. [1]

Systematic Desensitization

Desensitization helps individuals unlearn fearful responses to stimuli, such as the content of nightmares. In the case of children with nightmare disorder, therapists may use techniques such as writing about or drawing the nightmares to lessen their distress. [1]

Additional Therapies for Nightmare Disorder

Beyond these commonly implemented therapies, research has revealed that the following treatments may also help to manage nightmare disorder: [1]

  • Sleep dynamic therapy: This form of therapy focuses on understanding and changing sleep patterns and behaviors that contribute to nightmares

  • Lucid dreaming therapy: Lucid dreaming therapy teaches individuals to become aware during the dream state and how to gain control over the content of their dreams

  • Muscle relaxation techniques: These techniques help to reduce physical tension and anxiety that can trigger or worsen nightmares

  • Exposure, relaxation, and rescripting therapy (ERRT): ERRT combines gradual exposure to nightmare content with relaxation and rewriting the dream to reduce distress

Medications

Although research is still limited, certain medications (either taken alone or alongside behavioral therapy) may help to manage nightmare disorder, and it is important to consult a healthcare professional to explore these treatment options. [1]

While there are medicines available that may benefit co-occurring conditions, and subsequently alleviate recurrent nightmares, the most recent studies suggest the following pharmaceuticals may be of benefit to those with nightmare disorder that exists in isolation: [1] [10]

Alpha-1 Adrenergic Blockers

Alpha-1 adrenergic blockers are pharmaceuticals that primarily work by relaxing the blood vessels and lowering blood pressure. These medications can help reduce the physical symptoms of hyperarousal, such as a rapid heartbeat and high blood pressure. [10]

In the context of nightmare disorder, these medications (especially prazosin) are believed to reduce the brain's overactive stress response during sleep. This can help to decrease the frequency, intensity, and emotional impact of nightmares, especially those related to trauma. [10]

Benzodiazepines

These sedative medications promote sleep and may reduce nightmares, but are typically used only for a short time period due to the high risk of dependence: [10]

  • Nitrazepam

  • Triazolam

Making Improvements at Home

Simple changes to the home environment and daily routine can benefit sleep quality, even for those with nightmare disorder. In addition to medical or therapeutic interventions, certain tools and habits may decrease nighttime disturbances and promote more restful sleep. Studies indicate that wearable technology and sleep hygiene practices may reduce nightmares. [1]

Wearable Technology

Emerging research suggests that a smartwatch system known as NightWare may help improve sleep in people experiencing nightmares as a result of PTSD. NightWare detects changes in heart rate and movement during a disturbing dream and responds with gentle vibrations to disrupt REM sleep without fully waking the user. [1]

However, while initial results are encouraging and the device has been FDA-approved as an intervention for PTSD, more studies are needed to confirm its effectiveness as a treatment for nightmare disorder. [1]

Sleep Hygiene

Adopting healthy sleep habits may ease an individual’s overall stress levels, as well as symptoms of nightmare disorder, and support improved sleep quality. These habits, known as sleep hygiene, include: [1]

  • Maintaining a consistent sleep schedule (going to sleep and waking up at the same time each day)

  • Developing a calming bedtime routine (eg, having a warm bath or shower, utilizing an essential oil diffuser, and listening to soothing music)

  • Creating a quiet, dark, and comfortable sleep space

  • Exercising regularly, but not too close to bedtime

  • Avoiding heavy or large meals late at night

  • Steering clear of screen use at least one hour before sleep

  • Limiting or avoiding alcohol, caffeine, and nicotine before sleep

Long-Term Outlook

Despite recent advances, there remains a shortage of reliable, long-term, large-sample studies specifically addressing the prognosis of nightmare disorder as a primary diagnosis, rather than as a symptom of other psychiatric conditions.

That said, emerging research offers preliminary evidence that PTSD treatment can significantly reduce trauma-related nightmares. However, the impact of treatments for other psychiatric conditions linked to nightmares remains unexamined. [7]

Nevertheless, distressing nightmares that interfere with daily functioning should be treated using evidence-based approaches, as they represent a diagnosable mental health issue that can significantly disrupt a person’s life when left untreated. [7]

Final Thoughts

Nightmare disorder is a serious yet often overlooked sleep condition marked by frequent, vivid, and distressing dreams that can severely disrupt both sleep and waking life. These nightmares not only leave individuals feeling shaken and exhausted upon awakening but also contribute to broader issues such as sleep avoidance, emotional dysregulation, and functional impairments.

While often linked to trauma or co-occurring mental health conditions, nightmare disorder can arise independently, affecting people across various age groups and demographics. Fortunately, despite a lack of public awareness, effective treatment options are available. Specifically, a number of therapies have shown promise in reducing the frequency and impact of nightmares.

Additionally, in some cases, medications may also help, particularly when nightmares are trauma-related or co-occur with other psychiatric symptoms. Complementary strategies, such as improving sleep hygiene and creating a calm nighttime routine, can further support recovery and reduce sleep-related anxiety.

With the right combination of therapeutic intervention, lifestyle adjustments, and support, individuals suffering from nightmare disorder can regain a sense of safety during sleep and improve their overall quality of life. Addressing nightmares directly offers a powerful path toward healing, rest, and restored well-being.

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    Aetiology and treatment of nightmare disorder: State of the art and future perspectives

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    Distressing dreams and risk of Parkinson's disease: A population-based cohort study

    Otaiku, D. A. I. (2022). Distressing dreams and risk of Parkinson's disease: A population-based cohort study. EClinicalMedicine, 48, 101474. https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(22)00204-8/fulltext00204-8/fulltext)

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    Pereira, M., Terpstra, N., Rutiku, R., Sandberg, K., Dresler, M., & Krause, F. (2024). Neural correlates of nightmares revisited: findings from large-scale fMRI cohorts. BioRxiv (Cold Spring Harbor Laboratory). https://www.researchgate.net/publication/381978202

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    The nightmare severity index (NSI): A short new multidimensional tool for assessing nightmares

    Geoffroy, P. A., Stern, E., Maruani, J., Renaud Cornic, Bazin, B., Clerici, E., Marine Ambar Akkaoui, Lopez, R., Justine Frija Masson, Marie-Pia d'Ortho, Lejoyeux, M., Jean-Arthur Micoulaud Franchi, & Couffignal, C. (2023). The nightmare severity index (NSI): A short new multidimensional tool for assessing nightmares. Journal of Sleep Research, 33(3). https://onlinelibrary.wiley.com/doi/10.1111/jsr.14065

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Star Gorven

Author

Star Gorven

Star Gorven is a wellness and mental health writer with a talent for crafting evocative and evidence-based content across a wide range of topics. Her work blends analytical research with imagination and personality, offering thoughtful insights drawn from her exploration of subjects such as psychology, philosophy, spirituality, and holistic wellbeing.

Activity History - Last updated: April 1, 2026, Published date: March 19, 2026


Morgan Blair

Reviewer

Morgan Blair has seventeen years of experience living with, studying, and treating eating disorders. When struggling with her eating disorder, she personally attended leading treatment facilities and witnessed firsthand the facility's inability to recognize her unique needs, which sparked her desire for advocacy and change.

Activity History - Medically reviewed on April 1, 2026 and last checked on April 1, 2026