Nightmares vs night terrors: how to tell the difference

3 AM. Your child is screaming. Or sitting up, eyes wide, sweating, not responding to your voice. Or running into your room shaking. Each of these is a different thing. Knowing which one you're looking at changes what to do next.

The 7 ways to tell them apart

What to do during a nightmare

Standard comfort. The child is awake and scared, just like an adult after a bad dream.

• Go in, sit with them, validate the fear ("That sounded scary").
• Don't dismiss it ("It wasn't real, go back to sleep") — that doesn't work and feels dismissive.
• Walk through the room with them — "See, the closet is closed. The window is locked."
• A short comfort routine (hug, drink of water, one minute of back-rubbing) is fine.
• Avoid bringing them into your bed — habit-forming. Stay in their room until they're calm, then leave.
• In the morning, ask about it briefly if they bring it up. Don't dwell.

What to do during a night terror

Almost the opposite. The child is asleep, not awake. Trying to comfort them often prolongs the episode.

• Don't wake them. Waking can trigger longer and more frequent terrors. Counterintuitive but well-established.
• Keep them safe. Move pillows away if they're thrashing. Block stairs if they're sleepwalking-ish.
• Wait it out. 5 to 40 minutes. They'll return to deeper sleep on their own.
• Don't bring it up in the morning. They have no memory and explaining it can create anxiety they didn't have before.
• Document the timing. If terrors are recurring, the pattern usually shows a specific time window — say, always between 90 minutes and 2 hours after sleep onset.

The age windows

• Nightmares: start around age 2-3 when imagination develops enough to dream vividly. Peak ages 3-6. Decline through age 10.
• Night terrors: peak ages 3-7. About 1-6 percent of kids have them regularly during this window. Almost always resolve by age 12. Strong familial pattern — if one parent had them, kids are more likely to.

The "scheduled wakening" technique (for recurring terrors)

If terrors happen at roughly the same time every night and are bothering the family:

1. Track the time of onset for 5-7 nights. They usually cluster within a 30-minute window.
2. 15 minutes before the typical onset, gently wake the child enough to disrupt the sleep cycle — they don't need to fully wake. Say their name softly, touch their shoulder, get a small "mmm" response.
3. Let them re-settle (1-2 minutes).
4. Continue nightly for 7-10 days, then taper.

The technique resets the sleep stage transition that's triggering the terror. Effective in roughly 80 percent of recurring cases. Useful for severe or family-disrupting patterns; not necessary for occasional terrors.

When to call the pediatrician

• Terrors happen multiple times per night (vs once)
• Terrors begin after age 8 (atypical onset)
• Child has daytime sleepiness, snoring, or breathing pauses (rule out sleep apnea — a common terror trigger)
• Sleepwalking with injury risk (leaving the house, falls)
• Family is exhausted from the pattern and home interventions aren't working

Risk factors that make episodes more likely

• Being overtired (the biggest single risk factor for terrors)
• Recent stress (new sibling, new school, family change)
• Family history of terrors or sleepwalking
• Fevers — kids prone to terrors often have one during illness
• Caffeine or sugar within 4 hours of bedtime

General guidance. Recurring or severe parasomnias should be evaluated by a pediatrician or pediatric sleep specialist.