Night terrors in adults are not the same as nightmares. A nightmare happens during REM sleep and you often remember it. A night terror happens during deep non-REM sleep, and the person usually has no memory of it the next morning. To stop them, you must first identify what is fragmenting your sleep. The core fix is treating the underlying cause—most commonly sleep deprivation, stress, alcohol, or an untreated sleep disorder like sleep apnea. You cannot simply “will” a night terror away, but you can almost always reduce or eliminate them by addressing the trigger.
What Exactly Is a Night Terror in an Adult?
A night terror is a partial arousal disorder. It happens when your brain gets stuck between deep sleep and wakefulness. You are not fully asleep, and you are not fully awake. The brain’s arousal system fires incorrectly, producing intense fear, vocalizations, and sometimes violent movement.
During an episode, the person may sit up in bed, scream, thrash, or even get out of bed and run. Their heart rate and breathing spike. Their eyes may be open, but they are not responsive to you. Attempts to wake them often make the episode worse or last longer.
Most adults who have night terrors had them as children. However, they can start in adulthood for the first time. When they do, it is a red flag that something specific is driving them—often a medical or psychological issue that needs evaluation.
What Causes Night Terrors in Adults?
The single most common trigger is sleep deprivation. When you are chronically tired, your brain spends more time in deep slow-wave sleep. That deep sleep is exactly where night terrors originate. The brain tries to “catch up” on deep sleep, and the transition out of it becomes unstable.
Stress is the second major driver. High anxiety levels increase arousals during sleep. These micro-arousals can trigger a full-blown night terror episode in someone who is predisposed.
Alcohol is another frequent culprit. Alcohol suppresses deep sleep in the first half of the night, then causes a rebound of deep sleep as it wears off. That rebound period is when night terrors often strike. Stopping alcohol—especially heavy evening drinking—resolves many cases.
Other causes include:
- Obstructive sleep apnea—breathing pauses fragment sleep and trigger arousal disorders
- Fever or illness that disrupts sleep architecture
- Certain medications, especially some antidepressants and sedatives
- Restless legs syndrome
- Post-traumatic stress disorder
- Migraine, especially in the hours after an attack
If you have never had night terrors before and they suddenly appear in adulthood, you should not assume it is just stress. A medical workup is warranted, particularly to rule out sleep apnea or a neurological issue.
How To Stop Night Terrors In Adults For Good: The Practical Steps
The first step is fixing your sleep debt. This is not vague advice—it is the single most effective intervention. If you are getting less than seven hours of sleep per night, you are running a deficit. The brain will try to recover that deep sleep, and that recovery is when night terrors occur.
Go to bed 30 to 60 minutes earlier each night. Do this consistently for two weeks before evaluating whether it helped. Sleep debt takes time to repay. One good night of sleep will not erase it.
Eliminate alcohol entirely for at least two weeks. If night terrors are alcohol-related, you will likely see improvement within that window. Alcohol affects sleep architecture even in small amounts, and its effects on deep sleep rebound are well documented.
Address stress with a concrete routine, not vague relaxation advice. A consistent wind-down period of 30 minutes before bed—no screens, no work, no intense conversation—reduces the arousal level your brain carries into sleep. Journaling worries before bed can also help because it externalizes anxious thoughts rather than letting them replay during sleep transitions.
If you share a bed, ask your partner to observe your breathing during sleep. Loud snoring, gasping, or observed pauses in breathing suggest sleep apnea. Sleep apnea is a major trigger for night terrors in adults, and treating it with a CPAP machine often eliminates episodes entirely.
What to Do During an Episode
Your instinct may be to wake the person. Do not do this. Waking someone mid-episode usually prolongs the event and increases their confusion and fear. They are not aware of what they are doing, and they may not recognize you.
Your job is to keep them safe. Guide them gently back to bed if they are up and moving. Remove sharp objects or obstacles from the path. Speak in a calm, low voice. Do not shout, grab, or restrain them unless they are in immediate physical danger.
Most episodes last between one and ten minutes. Afterward, the person usually settles back into sleep without ever becoming fully conscious. In the morning, they will have no memory of the event. Do not bring it up in a way that shames or alarms them—they cannot control it, and they may feel distressed to learn what happened.
When Night Terrors Are a Symptom of Something Else
In adults, new-onset night terrors should not be dismissed as a quirk. If they start after age 18 and you have no history of them, a medical evaluation is appropriate. The evaluation should include a sleep study if the episodes are frequent or severe.
Sleep apnea is the most common medical condition found in adults with new night terrors. The mechanism is straightforward: apnea events cause brief awakenings, and those awakenings can trigger a partial arousal episode. Treating the apnea often resolves the night terrors completely.
Post-traumatic stress disorder is another important cause. Night terrors in PTSD are sometimes called “sleep-related dissociative episodes.” They differ from classic night terrors because the person may have some recall of the event, and the content often relates to the trauma. Trauma-focused therapy, not sleep hygiene alone, is the appropriate treatment in this case.
Certain medications can trigger night terrors. Some antidepressants, particularly those that increase norepinephrine, have been linked to arousal disorders. Sedative-hypnotics can also worsen them because they alter sleep architecture. If you started a new medication around the same time the episodes began, discuss this with your prescribing doctor. Do not stop any medication without medical supervision.
Medical Treatments That Can Help
When lifestyle changes are not enough, medical treatment is available. The evidence base is not large, but several approaches have shown benefit in clinical practice.
Benzodiazepines, particularly clonazepam, are the most commonly prescribed medication for night terrors. They suppress deep slow-wave sleep, which is the stage where episodes originate. However, they are habit-forming and can cause daytime sedation. Most clinicians reserve them for severe, frequent episodes that have not responded to other measures.
Tricyclic antidepressants, such as imipramine, have also been used. They reduce the amount of deep sleep and have a lower abuse potential than benzodiazepines. The evidence for their effectiveness is based mostly on case reports and small studies, not large randomized trials.
Some evidence suggests that treating an underlying condition—such as sleep apnea, restless legs syndrome, or GERD—resolves night terrors without needing a specific medication for the terrors themselves. This is why the medical workup matters. Treating the root cause is always preferable to suppressing the symptom.
For people whose night terrors are linked to trauma, trauma-focused psychotherapy is the first-line treatment. Medications may be used as an adjunct, but they do not address the underlying emotional processing that drives the episodes.
Prevention Strategies That Work Long-Term
Consistency is the foundation. A regular sleep schedule—same bedtime, same wake time, seven days a week—stabilizes your sleep architecture. Irregular schedules fragment sleep and increase the likelihood of partial arousals.
Keep your bedroom cool. Overheating increases nighttime awakenings. A room temperature around 65 degrees Fahrenheit is a reasonable target for most people, though individual comfort varies.
Review your medication list with your doctor. Some blood pressure medications, antidepressants, and even some over-the-counter cold medicines can increase sleep fragmentation. If your night terrors started after a medication change, that timing is meaningful.
Limit caffeine to the morning hours. Caffeine has a half-life of about five to six hours. A 4 p.m. coffee still has significant stimulant effects at 10 p.m., and those effects fragment deep sleep.
Frequently Asked Questions
Can adults suddenly develop night terrors?
Yes, adults can develop night terrors for the first time, and new-onset episodes warrant a medical evaluation. The most common causes are sleep deprivation, stress, alcohol use, sleep apnea, or a new medication.
Is it dangerous to wake someone having a night terror?
Waking someone mid-episode is not physically dangerous, but it usually prolongs the episode and increases confusion. Your role is to keep them safe and guide them back to bed without forcing full wakefulness.
How long do night terrors last in adults?
Most episodes last between one and ten minutes. The person typically settles back into sleep afterward and has no memory of the event in the morning.
What is the difference between a night terror and a nightmare?
Nightmares happen during REM sleep and are often remembered in detail. Night terrors happen during deep non-REM sleep, involve partial arousal, and are typically not remembered at all.
