Night Terrors vs Nightmares: What's the Difference and How to Help

You or your child wakes screaming in apparent terror, but there's no memory of it afterward. Night terrors are alarming to witness but different from nightmares—and understanding the distinction is key to addressing them.

Your child sits bolt upright in bed, screaming with wide, terrified eyes—but won't respond to your comforting words and has no memory of it the next morning. Night terrors are among the most frightening sleep experiences for parents to witness, yet they're surprisingly common and usually harmless.

What Are Night Terrors?

Night terrors (also called sleep terrors or pavor nocturnus) are a parasomnia characterized by episodes of intense fear, screaming, and physical agitation during sleep, typically without subsequent memory of the event.

During a night terror, a person may:

• Scream or shout in apparent terror
• Sit up suddenly in bed
• Thrash about violently
• Have a racing heart and rapid breathing
• Sweat profusely
• Have wide-open, glassy eyes that seem not to see you
• Be difficult or impossible to wake or console
• Act confused if awakened

Night Terrors vs. Nightmares

While often confused, night terrors and nightmares are fundamentally different:

Who Experiences Night Terrors?

Night terrors are most common in:

• Children ages 4-12: About 3-6% of children experience them
• Boys more than girls: Slightly more common in males
• Those with family history: Strong genetic component
• Children who sleepwalk: Often co-occurs with sleepwalking

Most children outgrow night terrors by adolescence. Adult night terrors are less common (about 2% of adults) but can occur, especially under certain conditions.

What Causes Night Terrors?

Partial Arousal from Deep Sleep

Night terrors occur when the brain gets "stuck" between deep sleep and wakefulness. The emotional and physical fear response activates, but consciousness does not fully emerge.

Common Triggers

• Sleep deprivation: The most common trigger—increases deep sleep intensity
• Fever and illness: Particularly in children
• Irregular sleep schedules: Disrupts normal sleep architecture
• Stress and anxiety: Can increase arousal from sleep
• Full bladder: Creates internal arousal pressure
• Sleep apnea: Breathing disruptions trigger arousals
• Certain medications: Especially sedatives
• Sleeping in unfamiliar places: More common during travel
• Alcohol: In adults, alcohol triggers episodes

Genetic Factors

Night terrors run strongly in families. If both parents have a history of sleep terrors or sleepwalking, children have a significantly increased risk.

What to Do During a Night Terror

For Parents of Children

• Stay calm: Your child is not in pain or danger
• Don't try to wake them: This can prolong the episode and cause confusion
• Keep them safe: Gently prevent them from hurting themselves
• Don't restrain them: This can increase agitation
• Wait it out: Most episodes end within 10-15 minutes
• Guide back to bed: If they get up, gently guide without waking

After the Episode

• They'll likely fall back into peaceful sleep quickly
• Don't wake them to discuss it
• In the morning, don't make a big deal of it—they likely don't remember
• Note the time it occurred (useful for scheduled awakenings)

Treatment and Prevention

Prioritize Adequate Sleep

This is the most important intervention:

• Ensure age-appropriate sleep duration (see sleep by age guidelines)
• Use our Sleep Calculator to optimize bedtimes
• Maintain consistent sleep and wake times
• Avoid overtiredness—don't skip naps for young children

Scheduled Awakenings

For children with predictable night terrors:

1. Track when episodes typically occur (usually 1-3 hours after sleep onset)
2. Wake the child briefly 15-30 minutes before the expected time
3. The child only needs to be roused briefly—not fully awakened
4. Continue for 2-4 weeks
5. This disrupts the sleep cycle that triggers night terrors

This technique has shown 80-90% effectiveness in studies.

Address Triggers

• Maintain a calm bedtime routine
• Reduce stress and overstimulation before bed
• Ensure the child uses the bathroom before sleep
• Treat any underlying conditions (fever, sleep apnea)
• Review medications with a doctor if episodes started with new medication

Safety Precautions

• Remove sharp objects from the bedroom
• Block access to stairs
• Secure windows
• Consider bed rails if the child thrashes significantly

Medical Treatment

For severe or dangerous cases, doctors may prescribe:

• Low-dose benzodiazepines (clonazepam)
• Certain antidepressants
• Melatonin (may help regulate sleep cycles)

Medication is usually reserved for cases with significant safety risks or when other approaches fail.

Night Terrors in Adults

Adult night terrors are less common but can occur. In adults, they're often associated with:

• Extreme stress or trauma
• Alcohol use or withdrawal
• Sleep deprivation
• Untreated sleep apnea
• Psychiatric conditions
• Medications

Adult-onset night terrors warrant medical evaluation to rule out underlying conditions.

When to Seek Medical Help

Consult a healthcare provider if night terrors:

• Begin for the first time in adulthood
• Result in injury
• Continue beyond adolescence without decreasing
• Occur frequently (multiple times per week)
• Are accompanied by other sleep problems or daytime symptoms
• Significantly disrupt family sleep
• Are accompanied by sleepwalking with dangerous behaviors

Living with Night Terrors

For Parents

• Remember that your child is not suffering—they're not conscious during episodes
• They almost always outgrow night terrors
• Focus on ensuring adequate sleep and reducing triggers
• Inform babysitters and overnight caregivers

For Adults

• Inform sleep partners about your condition
• Create a safe sleep environment
• Address any underlying triggers (stress, alcohol, sleep deprivation)
• Consider sleep evaluation if episodes are frequent

Frequently Asked Questions

Do night terrors cause psychological damage?

No. Night terrors don't cause psychological harm to the sleeper, who typically has no memory of them. They're more distressing for observers than for the person experiencing them.

Should I wake my child during a night terror?

No. Attempting to wake them usually prolongs the episode and can cause confusion. Keep them safe and wait for the episode to pass naturally.

Are night terrors linked to mental health problems?

In children, night terrors are typically not related to psychological issues. In adults, they may sometimes be associated with stress, anxiety, or other conditions, but often they're simply triggered by sleep deprivation.

Can night terrors be prevented?

While not always preventable, maintaining good sleep habits, ensuring adequate sleep, and using scheduled awakenings can significantly reduce their frequency.

Will my child remember the night terror?

Almost certainly not. Unlike nightmares, night terrors occur during non-REM sleep and typically leave no memory.

At what age do night terrors start and stop?

They most commonly begin between ages 4-12 and typically resolve by adolescence. Some children as young as 18 months experience them.

Can watching scary movies cause night terrors?

Scary content might trigger nightmares (which occur during REM sleep and are remembered), but night terrors occur during deep sleep and aren't directly connected to dream content or daily experiences.

Conclusion

Night terrors, while frightening to witness, are typically harmless episodes that children outgrow. The key to managing them is ensuring adequate sleep, maintaining consistent schedules, and knowing how to respond safely during episodes.

If your child experiences night terrors, focus on optimizing their sleep using our Sleep Calculator and our bedtime guidelines for children. For most families, these simple steps significantly reduce or eliminate episodes.

Remember: your child is not suffering during night terrors, even though it appears that way. With proper sleep habits and time, most children leave night terrors behind as they grow.