How to Deal With Nightmares and Night Terrors

When Sleep Becomes Frightening: Understanding What’s Happening in Your Mind

Waking in a cold sweat, heart pounding, with the remnants of a terrifying dream clinging to your thoughts — this experience affects roughly 50–85% of adults at least occasionally, yet millions suffer in silence, unsure how to deal with nightmares and night terrors effectively. Whether you’re losing sleep over vivid, distressing dreams or watching a loved one thrash through the night in apparent terror, you deserve real answers and real relief. This guide brings together the latest 2026 research, clinical insights, and compassionate, practical strategies to help you reclaim peaceful nights.

Before we dive in, it helps to understand that disturbed sleep isn’t a personal failing or a sign that something is fundamentally broken in you. Your brain is doing something — processing stress, replaying trauma, or simply misfiring during sleep transitions — and with the right tools, you can change that pattern. Let’s start by making sure we’re talking about the same things.

Nightmares vs. Night Terrors: They Are Not the Same Thing

Many people use these terms interchangeably, but they are distinctly different phenomena with different causes, different age profiles, and different treatment approaches. Getting this distinction right is the first step toward effective relief.

What Nightmares Actually Are

Nightmares are vivid, disturbing dreams that occur during REM (rapid eye movement) sleep — typically in the second half of the night when REM cycles are longest. When you wake from a nightmare, you remember it. The imagery, emotions, and narrative feel real and often linger well into your waking hours. Common themes include being chased, falling, losing control, or reliving traumatic events.

According to the American Academy of Sleep Medicine’s 2025 updated guidelines, approximately 4% of adults experience chronic nightmare disorder — defined as recurring nightmares that cause significant distress or daytime impairment. Women report nightmares more frequently than men, though researchers believe this may reflect reporting differences rather than true prevalence gaps. Certain medications, including some antidepressants, beta-blockers, and sleep aids, can actually trigger or worsen nightmares — something worth discussing with your doctor if you’ve noticed a correlation.

What Night Terrors Actually Are

Night terrors (also called sleep terrors) are a very different beast. They occur during non-REM sleep — usually within the first few hours of falling asleep — and they represent a partial arousal from deep sleep. During a night terror, a person may scream, sit bolt upright, thrash, sweat profusely, and appear absolutely terrified. Here’s the strange part: they are usually not fully awake, and in the morning, they typically remember nothing.

Night terrors are most common in children aged 4–12, affecting an estimated 1–6% of children, but they do occur in adults — particularly during periods of extreme stress, sleep deprivation, or when certain substances are involved. A 2024 study published in the journal Sleep Medicine Reviews found that adult night terrors are significantly underreported, with many adults feeling embarrassed to disclose them to healthcare providers. If you share a bed with someone who has night terrors, knowing not to restrain them (which can increase agitation) and gently guiding them back to a safe lying position is often the most helpful response.

The Root Causes: Why Your Brain Keeps Doing This

Understanding the “why” behind your disturbed sleep isn’t just intellectually interesting — it’s practically essential, because the most effective treatments are cause-specific. Here are the most well-established contributors.

Stress, Anxiety, and Trauma

This is the big one. Stress and anxiety are the leading triggers for both nightmares and night terrors in adults. Your brain uses REM sleep partly as an emotional processing system — essentially replaying and attempting to integrate difficult experiences. When stress levels are high, this system goes into overdrive. Post-traumatic stress disorder (PTSD) represents the most clinically significant intersection of trauma and nightmares: recurrent, distressing nightmares are a core diagnostic criterion for PTSD, affecting an estimated 70–90% of those diagnosed.

Even everyday stress — a difficult work period, relationship tension, financial worry — can be enough to tip the balance into nightmare territory. This is why so many people notice their disturbing dreams cluster around particularly stressful life periods.

Sleep Deprivation and Disrupted Sleep Architecture

There’s a cruel irony here: when you’re sleep-deprived, your brain compensates by spending more time in REM sleep when you do finally sleep (called REM rebound). More REM sleep means more dreaming, and more intense dreaming, which increases nightmare frequency. Irregular sleep schedules, shift work, jet lag, and inconsistent bedtimes all disrupt your sleep architecture in ways that set the stage for disturbed nights.

Medications, Substances, and Withdrawal

Several commonly prescribed medications can trigger or worsen nightmares, including certain blood pressure medications (particularly beta-blockers like propranolol), some antidepressants, smoking cessation drugs like varenicline, and certain antivirals. Alcohol is a particularly misunderstood culprit — while it helps many people fall asleep faster, it suppresses REM sleep in the first half of the night and causes a REM rebound in the second half, leading to more vivid, disturbing dreams. Withdrawal from alcohol, benzodiazepines, and other substances can also trigger intense nightmares as the brain recalibrates.

Other Sleep Disorders

Sleep apnea — a condition in which breathing repeatedly stops during sleep — is increasingly recognized as a significant trigger for nightmares. When the brain is briefly deprived of oxygen, it may generate frightening dream content as a kind of alarm signal. A 2024 analysis in the journal Chest found that effective treatment of sleep apnea with CPAP therapy reduced nightmare frequency by over 50% in participants with co-occurring nightmare disorder. If you snore loudly, wake with headaches, or feel unrefreshed despite adequate sleep time, a sleep study is worth pursuing.

Evidence-Based Strategies to Deal With Nightmares and Night Terrors

This is where things get genuinely encouraging. There are multiple well-researched, effective approaches to help you deal with nightmares and night terrors — and they don’t all involve medication. The right combination depends on what’s driving your experience, but most people find meaningful relief through one or more of the following strategies.

Image Rehearsal Therapy (IRT)

IRT is considered the gold-standard psychological treatment for chronic nightmare disorder and is strongly recommended in clinical guidelines across the US, UK, Canada, and Australia. The approach is elegantly simple: while you’re awake and calm, you write down a recurring nightmare, then consciously rewrite its ending to something less threatening — even something neutral or pleasant. You then rehearse this new version of the dream in your mind for 10–20 minutes daily.

Research consistently shows that IRT reduces nightmare frequency and severity, with some studies demonstrating a 50–70% reduction in nightmare distress after just a few weeks of practice. The mechanism appears to involve giving your conscious mind greater narrative agency over dream content, essentially “reprogramming” the brain’s emotional associations with the dream material. You don’t need a therapist to begin IRT — though working with one, particularly a therapist trained in trauma or CBT-I (cognitive behavioural therapy for insomnia), can significantly enhance outcomes.

Scheduled Waking for Night Terrors

For children and adults with predictable night terrors, scheduled waking is a highly effective behavioural intervention. The idea is to wake the person (or set an alarm to wake yourself) about 15–30 minutes before the typical time of the terror episode, keep them briefly awake, then allow them to return to sleep. This interrupts the deep sleep cycle that gives rise to the terror. Studies in pediatric populations show success rates of 70–90% with consistent application over 2–4 weeks.

Cognitive Behavioural Therapy for Insomnia (CBT-I)

CBT-I is the first-line recommended treatment for chronic sleep problems in adults according to the American College of Physicians, and it addresses many of the underlying patterns — poor sleep hygiene, anxiety around sleep, irregular schedules — that worsen nightmare frequency. CBT-I is now widely available through digital platforms and apps in addition to in-person therapy, making it more accessible than ever for those in regional areas of Australia, Canada, or rural communities in the US and UK.

Building a Consistent Sleep Foundation

While it may sound basic, the consistent practice of good sleep hygiene has measurable impact on nightmare frequency. Consider implementing these evidence-backed habits:

Keep a consistent sleep and wake time — even on weekends — to stabilise your circadian rhythm and prevent REM rebound.
Create a wind-down routine in the 60 minutes before bed: dim lights, gentle stretching, reading fiction, or calming audio.
Limit alcohol, particularly in the four hours before sleep, to prevent the REM rebound effect it causes.
Keep the bedroom cool and dark — the optimal sleep temperature for most adults is between 65–68°F (18–20°C).
Avoid screens in the 30–60 minutes before bed, as blue light and stimulating content can elevate arousal levels that interfere with sleep architecture.
Write worries down before bed — a simple “brain dump” journal can externalise anxious thoughts and reduce the likelihood your brain processes them through nightmares.

Stress Reduction and Relaxation Practices

Since stress is the primary driver of nightmare activity in most adults, directly targeting your daytime stress load is a high-leverage strategy. Practices with strong research backing include:

Progressive muscle relaxation (PMR): Systematically tensing and releasing muscle groups from toes to head, done before sleep, has been shown to reduce nightmare frequency and improve overall sleep quality.
Mindfulness meditation: Even brief daily mindfulness practice (10–15 minutes) reduces hyperarousal of the nervous system, which is a key driver of disturbed REM sleep.
Diaphragmatic breathing: Slow, deep belly breathing activates the parasympathetic nervous system, signalling safety to your brain before sleep.
Expressive writing: Research by James Pennebaker and colleagues has long shown that writing about stressful or traumatic experiences for 15–20 minutes over several days can reduce the emotional charge they carry — including in dreamscapes.

When to Consider Medication

For most people, psychological and behavioural approaches are preferable first-line treatments. However, for severe nightmare disorder — particularly in the context of PTSD — medication can be a valuable part of treatment. Prazosin, an alpha-blocker originally developed for blood pressure, has shown effectiveness in reducing PTSD-related nightmares in multiple clinical trials, though a landmark 2018 VA study showed mixed results, and its use is now more carefully individualised. Newer research as of 2025 has focused on cannabinoid-based therapies and novel receptor-targeted medications, with some promising early findings for treatment-resistant nightmare disorder. These decisions should always be made in consultation with a qualified physician or psychiatrist.

Supporting a Child Who Has Night Terrors or Nightmares

If your child is experiencing night terrors, your instinct to comfort them is completely natural — but the approach matters enormously. During a night terror, attempting to wake or restrain your child can prolong the episode and increase distress. Instead, stay calm, keep the environment safe, speak in a low soothing voice, and wait for the episode to pass. Most episodes resolve within 5–15 minutes, after which the child returns to peaceful sleep with no memory of what occurred.

For children with frequent nightmares, creating what psychologists call a “safety ritual” at bedtime can be remarkably effective. This might involve checking the room together, using a nightlight, keeping a special comfort object nearby, or doing a brief relaxation exercise together. Avoid letting children watch stimulating or frightening content in the hours before bed — even content that doesn’t seem frightening to adults can be processed as threatening by developing brains. If night terrors or nightmares are frequent, severe, or affecting a child’s functioning at school or socially, a referral to a paediatric sleep specialist or child psychologist is warranted.

When to Seek Professional Help

Knowing how to deal with nightmares and night terrors at home is genuinely empowering — but there are clear signs that professional support is the right next step. Don’t hesitate to reach out to your doctor, a sleep specialist, or a mental health professional if:

Nightmares or night terrors are occurring multiple times per week and significantly disrupting your sleep or daily functioning.
You or your child is afraid to go to sleep due to anticipatory anxiety about nightmares.
The disturbing dreams appear to be replaying traumatic events — this warrants trauma-specific support.
You’ve noticed other unusual sleep behaviours alongside night terrors, such as sleepwalking or acting out dreams (which can indicate REM sleep behaviour disorder, a separate condition).
Self-help strategies haven’t produced meaningful improvement after 4–6 weeks of consistent effort.
You’re relying on alcohol or other substances to manage sleep — this creates a cycle that worsens the underlying problem.

In the UK, you can speak with your GP who can refer you to an NHS sleep clinic or psychological therapies service. In the US, Canada, Australia, and New Zealand, sleep medicine specialists, clinical psychologists, and psychiatrists with expertise in sleep disorders are available through both private and public health pathways. Telehealth has significantly expanded access to these services as of 2026, making specialist support more reachable regardless of where you live.

Frequently Asked Questions

Can nightmares be a sign of a serious mental health condition?

Frequent nightmares can be associated with mental health conditions including PTSD, anxiety disorders, and depression — but having nightmares does not automatically mean you have a serious condition. Occasional nightmares are a normal part of the human sleep experience. If nightmares are persistent, distressing, and linked to other symptoms like hypervigilance, emotional numbing, or flashbacks, a professional evaluation is a wise step. Context matters enormously, and a qualified clinician can help you make sense of what’s happening.

Why do I keep having the same recurring nightmare?

Recurring nightmares typically indicate that your brain is repeatedly encountering an emotional conflict or unresolved experience that it hasn’t been able to fully process. This can be linked to past trauma, chronic stress, or a deeply held fear. The repetition is your brain’s way of flagging that something needs attention. Image Rehearsal Therapy (IRT), described above, was specifically developed to address recurring nightmares and has a strong evidence base for helping break the cycle.

Do certain foods cause nightmares?

The relationship between food and dreams is less well-established than popular belief suggests, but there is some evidence worth noting. Eating large meals close to bedtime raises your core body temperature and increases metabolic activity, which can interfere with sleep quality and intensify dreaming. Some small studies have suggested spicy foods may have a similar effect. Caffeine consumed in the afternoon or evening can disrupt sleep architecture in ways that worsen nightmare content. Alcohol — as detailed above — is the most significant dietary trigger. For most people, finishing dinner at least 2–3 hours before bed is a reasonable precaution.

Is it safe to wake someone during a night terror?

For most people, attempting to fully wake someone during a night terror is not recommended, as it can cause confusion, disorientation, and occasionally even aggressive behaviour in a person who is in a frightened, partially conscious state. The safest approach is to stay calm, ensure their physical safety, speak gently and reassuringly, and allow the episode to resolve naturally. If you are using scheduled waking as a preventive strategy, this involves waking the person before the typical terror time — which is a different, controlled situation. Always discuss your specific circumstances with a healthcare provider.

Can anxiety medication help with nightmares?

It depends on the medication and the underlying cause. Some anxiety medications — particularly certain SSRIs and SNRIs — can actually worsen or trigger nightmares in some individuals as a side effect. Others, such as prazosin used in PTSD-related nightmares, can reduce nightmare frequency significantly. Benzodiazepines may suppress dreaming in the short term but carry significant risks of dependency and rebound effects. Medication decisions should always be made with a prescribing physician who is aware of your full medical history and specific sleep concerns.

How long does it take for nightmares to improve with treatment?

This varies depending on the cause and the treatment approach, but many people begin noticing meaningful improvement within 2–4 weeks of consistent effort with strategies like IRT, improved sleep hygiene, and stress management practices. PTSD-related nightmares may take longer to address, particularly if the underlying trauma hasn’t been processed therapeutically. A 2025 meta-analysis in Behaviour Research and Therapy found that structured psychological interventions for nightmare disorder produced significant symptom reduction within 6–8 sessions on average. Progress isn’t always linear — some weeks will be better than others — but improvement over time is genuinely achievable for most people.

Are night terrors hereditary?

There is a clear genetic component to night terrors and other NREM parasomnias (abnormal sleep behaviours). Research indicates that children who have a parent with a history of sleep terrors or sleepwalking are significantly more likely to experience these episodes themselves. A study published in Sleep found that having one parent with a parasomnia history increases a child’s risk by approximately 45%, rising to 60% if both parents are affected. This genetic predisposition doesn’t mean episodes are inevitable, and it certainly doesn’t mean they can’t be managed effectively — but it does help explain why these patterns sometimes run in families.

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of your doctor, sleep specialist, or qualified mental health professional with any questions you may have regarding a medical condition or sleep disorder.

You Deserve Peaceful Nights — and They Are Within Reach

Knowing how to deal with nightmares and night terrors can feel overwhelming when you’re already exhausted and dreading sleep — but please know this: these experiences, however frightening, are among the most treatable sleep concerns in the field of sleep medicine. Thousands of people who once couldn’t close their eyes without dread now sleep peacefully, and the same is possible for you. Start with one or two strategies from this guide, be patient and consistent with yourself, and don’t hesitate to reach out for professional support when you need it. Your nights can feel safe again. Better sleep — and the brighter days that come with it — is not just a distant hope. It’s a real and reachable destination, and you deserve every step of the journey there.