You shouldn’t wake someone during a night terror because their brain is caught between deep sleep and wakefulness, with only certain regions active. Forcing them awake pulls them into full consciousness while they’re still in a state of intense fear and confusion, with no awareness of where they are or who you are. This can trigger aggressive behavior, make the episode last longer, and leave the person more distressed than if you had simply let it pass on its own.
What’s Happening in the Brain
Night terrors occur during the deepest stage of non-REM sleep, typically in the first third of the night. Unlike nightmares, which happen during lighter REM sleep toward morning, night terrors erupt from slow-wave sleep, the phase when the brain is least responsive to outside stimulation.
What makes a night terror so disorienting is that the brain isn’t fully asleep or fully awake. Researchers have found that certain “islands” of the brain switch to a wake-like pattern while the rest remains in deep sleep. The areas that wake up are the ones controlling movement and emotion, including the amygdala (the brain’s fear center) and the motor cortex. Meanwhile, the higher-order thinking regions and the hippocampus, which handles memory, stay largely offline. The result is a person who can scream, thrash, sit up, or even run around the house while having no rational awareness of their surroundings and no ability to form memories of what’s happening.
This is why someone in the middle of a night terror has a racing heart, looks terrified, and may be physically active, yet has no dream to describe afterward and usually remembers nothing the next morning.
Why Waking Them Makes It Worse
When you try to shake or shout someone out of a night terror, you’re working against the brain’s deepest sleep state. The person is extremely hard to wake in the first place. If you do manage to rouse them, they surface into consciousness while still flooded with fear and disconnected from rational thought. They don’t recognize you. They don’t know where they are. They may continue to appear confused and disoriented for several minutes or longer.
This confusion creates real problems. A person who is physically restrained or held back during an episode may respond with aggression, not out of intent but because their brain is processing a threat it can’t make sense of. Attempting to block their movement or forcefully wake them can escalate the episode’s intensity and duration. What might have resolved on its own in a few minutes can stretch into a longer, more distressing event for everyone involved.
Children, who experience the vast majority of night terrors, can become inconsolable if woken mid-episode. Rather than snapping out of it, they often cry harder and take much longer to settle back to sleep.
What to Do Instead
The most effective response during a night terror is to wait it out. That’s difficult to watch, especially with a child, but the episode won’t cause harm on its own and typically stops within a few minutes. Speak softly and calmly if you speak at all. Don’t shout. You can stay close, offer gentle comfort like a cuddle, and guide them back into bed once the episode winds down.
Safety is the main priority. Since people can get out of bed, walk, or run during an episode, the environment matters more than your intervention. Lock windows and exterior doors. Block stairways with a gate. Move tripping hazards like electrical cords out of the way. Remove sharp or fragile objects from reach, and avoid bunk beds if your child has frequent episodes. Lock up any weapons in the home.
Night Terrors vs. Nightmares
The reason the advice differs so much from what you’d do during a nightmare is that these are fundamentally different events. A nightmare happens during REM sleep, usually in the early morning hours. The person wakes up on their own, remembers the dream vividly, and is comforted by your presence because their rational brain is fully online. Waking someone from a nightmare is helpful because you’re pulling them out of a bad dream into clear-headed relief.
A night terror happens during deep non-REM sleep, usually in the first few hours after falling asleep. There’s no dream to recall, no awareness of surroundings, and no ability to recognize you during the episode. The rapid heart rate and visible panic are real physiological responses, but they aren’t tied to a storyline the person can describe. Waking them doesn’t end a bad dream. It just forces a confused, frightened brain into a waking state it isn’t ready for.
Who Gets Night Terrors
Night terrors primarily affect children between ages 4 and 12, with a peak between 5 and 7. Estimates suggest anywhere from 1 to 6.5% of children experience them, though some studies report prevalence as high as 14%. Most children outgrow them naturally as their nervous system matures and they spend less time in deep slow-wave sleep.
Adults can have night terrors too, though it’s less common. In adults, episodes are more often linked to triggers like sleep deprivation, high stress, or disrupted sleep schedules. Conditions that fragment sleep, such as sleep apnea, can also increase the likelihood of an episode.
Preventing Recurrent Episodes
If night terrors happen frequently and follow a predictable pattern, a technique called scheduled awakenings can be remarkably effective. You track when the episodes typically occur, then gently wake the person 15 to 30 minutes before that time, just enough to confirm they’re briefly awake. This disrupts the sleep cycle before it reaches the point where a night terror would ignite.
In research on this method, nearly all participants improved, with 22 out of 23 children achieving full remission of their episodes. The length of treatment varies. Some protocols call for nightly awakenings until the child has seven symptom-free nights, then gradually tapering off by skipping one night the first week, two nights the next week, and so on. If an episode recurs, nightly awakenings resume.
Beyond scheduled awakenings, consistent sleep schedules and adequate sleep duration are the most practical defenses. Sleep deprivation is one of the most reliable triggers for night terrors because it increases the proportion of deep slow-wave sleep, the exact stage where episodes originate. Keeping bedtimes and wake times consistent, even on weekends, reduces the likelihood of an episode in both children and adults.