Night terrors are one of the most distressing sleep disorders , especially for parents who witness these episodes in their children. While these experiences don't pose a direct physical danger to those who suffer them, they can generate a great sense of helplessness and anxiety within the family. It's essential to understand what they are, why they occur, and how to manage them appropriately.
Because they are a sleep-related phenomenon, night terrors fall under the category of parasomnias . During an episode, the person is in a state between consciousness and unconsciousness, which can be confusing for both the person experiencing it and the observer. But what lies behind these episodes? Why do they occur? How can we take action to alleviate them?
What are night terrors?
Night terrors are classified as arousal parasomnias . These episodes typically occur during deep sleep, specifically in stages III and IV of non-REM sleep. These sleep stages are known for their depth, making it difficult for a person to fully awaken during such an event.
Clinically, night terrors manifest as an abrupt and intense awakening accompanied by physical signs such as sweating, rapid heartbeat, rapid breathing, and even screaming or crying. Those affected often display a facial expression of extreme terror and appear to be reacting to a nonexistent threat. It should be noted that, in most cases, those who experience night terrors remember nothing the following day.
This disorder is most frequently observed in childhood, affecting primarily children between the ages of 3 and 12. Although episodes may decrease or disappear during adolescence, there are also isolated cases in young adults.
What Happens During a Night Terror Episode?
Night terrors typically occur during the first few hours of sleep , when sleepers are in the deepest stages of non-REM sleep. This type of event is characterized by heightened activity in the autonomic nervous system, leading to noticeable physical symptoms such as:
- Sudden screams or cries, with expressions of fear.
- Uncontrolled movements, such as kicking or trying to get out of bed.
- Fixed gaze and open eyes, but in a state of evident confusion.
- Excessive sweating, elevated heart rate, and labored breathing.
Intervening during these episodes can be counterproductive , as the child is not truly conscious and waking them abruptly can increase their confusion. The recommendation is to remain calm, ensure their safety, and wait for the episode to pass.
Are they the same as nightmares?
Although often confused, night terrors and nightmares are completely different phenomena:
- Nightmares occur during the phase REM of sleep, when the brain is very active and processing dream images. Night terrors, on the other hand, occur in the deepest phases of non-REM sleep, when brain activity is significantly smaller.
- A person who has a nightmare usually wakes up completely and remembers details of the dream. In contrast, awakening in night terrors is partial, and the sufferer usually has no memory of the event the next day.
- The physical manifestations in nightmares are more subtle, while night terrors involve screaming, sudden movements, and even sleepwalking-like behavior.
Possible causes
Studies conducted to date indicate that night terrors can have multiple triggers . Some of the most common factors include:
- Genetic predisposition: A family history of night terrors or sleepwalking significantly increases the chances of developing them.
- Sleep deprivation: Sleeping fewer hours than necessary or altering rest schedules can be a trigger.
- Stress and emotional tension: The accumulated emotional burden is also reflected in sleep cycles.
- Illnesses such as fever: Febrile periods in childhood may coincide with the appearance of episodes.
- Environmental factors: Changing rooms or routines can increase the risk of episodes.
- Consumption of certain substances: Caffeine or medications that disrupt the central nervous system.
In children, it has been observed that episodes are more frequent during times of neurological developmental transition and tend to decrease with the maturation of the nervous system.
Treatment
Although night terrors do not always require medical intervention, there are measures that can help minimize their frequency :
- Sleep hygiene: Establish relaxing routines before going to sleep, avoiding the use of electronic devices and heavy dinners.
- Identify triggers: Look for possible factors that may be causing stress or sleep disruptions.
- Scheduled wake-up: If episodes are regular, waking the child a few minutes early may interrupt the pattern.
- Professional support: In severe cases, consultation with a sleep specialist or psychologist may be beneficial.
In severe circumstances, where episodes significantly disrupt sleep quality or pose safety risks, some doctors may consider temporary drug treatments.
Understanding night terrors from an informative and compassionate perspective allows parents and caregivers to approach these episodes with greater peace of mind . Knowing that the child has no conscious memory of them and that they usually disappear over time helps reduce the emotional impact of these situations. Creating a safe and relaxing environment, combined with predictable routines and professional support if needed, is often enough to ensure restful sleep.