Photo: Pexels
A child screaming, thrashing, or sitting bolt upright in the middle of the night can look terrifying either way — but night terrors and nightmares are actually very different events, and knowing which one you're dealing with changes how you should respond.
The key difference
A nightmare is a bad dream that wakes a child up scared, and afterward they're generally alert, aware of what happened, and often want comfort or to talk about it. A night terror happens during deep non-REM sleep rather than during a dream, which is why a child in the middle of one is not actually awake, won't respond normally if you talk to them, and typically has no memory of it the next morning at all.
What a night terror looks like
- Happens earlier in the night — usually within the first few hours of sleep, during the deepest non-REM stage.
- Intense physical signs — screaming, thrashing, a racing heart, sweating, wide-open eyes that don't seem to focus on anything.
- Child seems awake but isn't — they may sit up, talk, or even walk around, but they're not responsive in a normal waking way.
- Hard to console — trying to wake or comfort a child mid-episode often doesn't work and can sometimes prolong it.
- No memory afterward — unlike a nightmare, a child typically has zero recollection of a night terror the next day.
What a nightmare looks like
- Happens later in the night — nightmares occur during REM sleep, which is more concentrated in the second half of the night.
- Child wakes up fully — often crying and clearly frightened, but aware of their surroundings.
- Can usually describe what happened — older children especially can often recount the dream in some detail.
- Responds to comfort — a hug, reassurance, or a parent's presence generally helps a child settle back down.
How to respond to each
For a night terror, the most important thing is simply to stay nearby and keep the child physically safe — moving anything they could bump into, gently guiding them back to bed if they're up and moving — without trying to wake them fully or hold them down. Most episodes resolve on their own within a few minutes as the child settles back into deeper sleep. For a nightmare, comfort works well: a calm voice, a hug, staying until they feel safe again, and letting them talk about it if they want to.
What tends to trigger night terrors
Overtiredness is one of the biggest known triggers, since it pushes a child into deeper non-REM sleep faster and more intensely than usual. A disrupted sleep schedule, a fever, sleeping in an unfamiliar place, or general overstimulation before bed can also increase how often they happen. Many parents notice a pattern: an especially exhausting day, a skipped nap, or a later-than-usual bedtime often precedes an episode that night.
When to check in with a doctor
Occasional night terrors, however dramatic they look, are considered normal childhood sleep behavior and usually fade on their own by the early school-age years. It's worth mentioning to a pediatrician if they're happening very frequently (multiple times a week), continuing well past age 8-10, involve the child getting hurt during an episode, or are accompanied by daytime sleepiness, snoring, or other signs of a sleep disorder that might need a closer look.
Reducing how often they happen
Since overtiredness is such a common trigger, a more consistent bedtime and making sure a child is getting enough total sleep for their age often reduces frequency on its own. Some families use "scheduled awakenings" — gently waking a child briefly about 15-30 minutes before their usual night terror time, then letting them fall back asleep — which has some evidence behind it for kids with a very predictable pattern, though it's worth discussing with a pediatrician before trying it as a routine strategy.
What this looks like for the parent, not just the child
Watching a child scream and thrash without being able to comfort them in the usual way is genuinely unsettling, and it's worth acknowledging that the hardest part of a night terror is often what it does to the parent watching, not the child experiencing it — since the child has no memory of it afterward at all. Reminding yourself in the moment that this is a physical, non-REM sleep event rather than a nightmare or distress the child is actually feeling can make it easier to stay calm and simply wait it out rather than trying harder interventions that don't tend to help.
Frequently asked questions
Should I wake my child during a night terror?
Generally no — waking a child mid-episode is difficult and can sometimes make it worse or last longer. It's usually better to keep them safe and let the episode run its course, then help them settle back to sleep.
Are night terrors a sign of anxiety or trauma?
In most children, no — night terrors are a normal sleep-cycle phenomenon related to how deep non-REM sleep is structured at this age, not typically a sign of underlying emotional distress.
Why doesn't my child remember the night terror the next day?
Because it happens during deep non-REM sleep rather than during a dream, the brain isn't forming the same kind of memory it would during a nightmare, which occurs in REM sleep. This is one of the most reliable ways to tell the two apart after the fact.
