Baby Night Terrors & Nightmares: What They Are & How to Help

The first time my son had a night terror, I thought he was possessed. He sat straight up in bed, screaming, eyes wide open but completely unresponsive. I tried to hold him, talk to him, wake him — nothing worked. After about ten minutes he laid back down and fell asleep as if nothing had happened. The next morning he had no memory of it. I was terrified. If you have been through this, you know exactly how scary it is. Here is what I learned about night terrors, nightmares, and how to help your child through them.

What is the difference between night terrors and nightmares?

This is the most important thing to understand, because they are very different and require different responses. Nightmares are bad dreams that occur during REM (rapid eye movement) sleep, which happens mostly in the second half of the night. Your child wakes up from a nightmare, remembers it, is scared, and wants comfort. They may be able to tell you what the dream was about (a monster, falling, being lost). Nightmares are common in toddlers and preschoolers as their imaginations develop and they process the day's experiences. Night terrors (also called sleep terrors) are not dreams — they are a partial arousal from deep non-REM sleep, usually occurring in the first third of the night (within 1-2 hours of falling asleep). During a night terror, your child may sit up, scream, thrash, sweat, have a racing heart, wide eyes, and look terrified — but they are not actually awake and will not respond to you. They do not remember the episode in the morning. Night terrors are most common in children ages 3-7, and many kids outgrow them by adolescence. The key differences: nightmares happen later at night, child wakes up and remembers, wants comfort; night terrors happen early at night, child is asleep/unresponsive, does not remember, and trying to comfort them can make it worse. My son's episodes were classic night terrors — always within 90 minutes of bedtime, screaming but unresponsive, no memory the next day.

What causes night terrors?

Night terrors happen when a child partially wakes from deep sleep but their brain is caught between sleep stages — they are physically aroused but not consciously awake. The exact cause is unknown, but several factors can trigger them: sleep deprivation is the biggest trigger — overtired children are much more likely to have night terrors, because their deep sleep is more intense and the transition between sleep stages is harder. Irregular sleep schedules (going to bed at different times, skipping naps) can also trigger episodes. Fever or illness can disrupt sleep and trigger night terrors. Stress or anxiety (a new daycare, a move, a new sibling, family conflict) can affect sleep quality. A full bladder can sometimes trigger an arousal from deep sleep. Family history — night terrors tend to run in families, suggesting a genetic component. In my son's case, the trigger was almost always sleep deprivation. If he had a late night or skipped his nap, he was far more likely to have an episode. Once we got him on a consistent, earlier bedtime, the night terrors decreased dramatically. It is also worth noting that night terrors are not a sign of psychological problems, trauma, or anything being "wrong" with your child. They are a common sleep phenomenon that most kids outgrow.

What should I do during a night terror?

This is counterintuitive, but the best thing to do during a night terror is almost nothing. Do not try to wake your child — they are not awake, and trying to wake them can prolong the episode or cause them to become more agitated. Do not hold or restrain them unless they are in danger of hurting themselves — they may thrash and push you away. Do not talk to them or try to reason with them — they cannot hear or process what you are saying. Instead: stay nearby, make sure they are safe (move hard objects away, make sure they do not fall out of bed), speak in a soft, calm voice (even though they may not respond), and wait. Most night terrors last 5-15 minutes, and your child will either settle back into deep sleep on their own or briefly wake up confused before falling back asleep. If your child walks around during a night terror (some do), gently guide them back to bed without forcing. The most important thing is to stay calm — your child is not in pain or danger, even though they look terrified. I know how hard it is to just stand there while your child screams. The first few times, I tried everything — picking him up, turning on lights, talking loudly. All of it made it worse and prolonged the episode. Once I learned to just sit quietly next to his bed and wait, the episodes became shorter and less intense.

How can I prevent night terrors?

The most effective prevention is ensuring your child gets enough sleep on a consistent schedule. Here is what worked for us: Earlier bedtime — if your child is having night terrors, try moving bedtime 15-30 minutes earlier. Overtiredness is the number one trigger, and many parents are surprised by how much earlier their child actually needs to go to bed. My son was going to bed at 8:30 and having frequent terrors; moving it to 7:45 made a huge difference. Consistent sleep schedule — go to bed and wake up at the same time every day, even on weekends. Avoid skipping naps. If your child still naps, make sure nap time is consistent and not too late in the afternoon (a late nap can interfere with nighttime sleep). Calming bedtime routine — a predictable, low-stimulation routine (bath, soft towel, pajamas, story, lullaby) helps your child transition smoothly into sleep. Avoid screens, rough play, or scary stories for at least an hour before bed. Scheduled awakenings — if night terrors are frequent and happen at a predictable time (e.g., always 90 minutes after bedtime), you can try gently waking your child 15 minutes before the expected episode, keeping them awake for 1-2 minutes, then letting them fall back asleep. This disrupts the sleep cycle and can prevent the partial arousal that triggers the terror. This technique has been shown to reduce night terrors in many children. Address stress — if there is a known stressor (new school, new sibling, family changes), provide extra comfort and talk about it during the day. Keep a sleep diary — track bedtime, wake time, naps, and when night terrors happen. This can help you identify patterns and triggers. If night terrors are very frequent (several times a night or every night), last longer than 30 minutes, involve dangerous behavior, or your child is excessively sleepy during the day, talk to your pediatrician — they may want to rule out other sleep disorders like sleep apnea.

FAQ

Q: Are night terrors harmful to my child?
A: No, night terrors are not harmful. Your child is asleep throughout the episode and does not remember it in the morning. They are not in pain, and night terrors do not cause any physical or psychological damage. The person who is most distressed by a night terror is usually the parent, not the child. If your child is safe during the episode, there is no need to worry about harm.

Q: At what age do night terrors start and when do they stop?
A: Night terrors most commonly begin between ages 3 and 7, though they can start as early as 18 months. They tend to peak in the preschool years and gradually decrease as children get older. Most children outgrow night terrors by adolescence, as their sleep cycles mature. If night terrors start suddenly in an older child or adult, it may be worth discussing with a doctor, as it can sometimes be related to sleep apnea or other sleep disorders.

Q: Should I wake my child during a night terror?
A: No, do not try to wake your child during a night terror. They are in a state of partial arousal from deep sleep and are not truly awake. Trying to wake them can cause confusion, agitation, and may prolong the episode. Instead, stay nearby to ensure their safety, speak softly, and wait for the episode to pass on its own. Most night terrors last 5-15 minutes and end with the child settling back into deep sleep.

Q: My child has nightmares every night. What can I do?
A: Frequent nightmares can be distressing for both child and parent. To reduce nightmares: maintain a consistent, calming bedtime routine; avoid scary TV shows, books, or rough play before bed; talk about happy things or read a pleasant story; use a night light if fear of the dark is an issue; and if your child wakes from a nightmare, comfort them fully, reassure them they are safe, and help them fall back asleep. If nightmares are severe, frequent, or causing significant daytime anxiety, talk to your pediatrician, as they can sometimes be a sign of stress or anxiety that needs addressing.

Article Summary

Night terrors and nightmares are different: nightmares happen later at night, your child wakes up scared and remembers them, and wants comfort; night terrors happen early in the night, your child is unresponsive and asleep, does not remember, and trying to comfort them can make it worse. Night terrors are common in ages 3-7, triggered most often by sleep deprivation, irregular schedules, fever, stress, or family history. During an episode, stay nearby, ensure safety, do not wake or restrain, and wait 5-15 minutes for it to pass. Prevention focuses on adequate sleep, consistent schedules, calming bedtime routines, and scheduled awakenings if episodes are predictable. Most children outgrow night terrors by adolescence. They are not harmful, and the most distressed person is usually the parent.