Nightmares in children aged 1-3

Nightmares in children aged 1-3: When dreams become scary

Nightmares are frightening, anxiety‑inducing dreams that usually occur in the second half of the night, during the rapid eye movement (REM) sleep phase. Unlike night terrors, after a nightmare the child fully awakens, feels fear, cries, calls for parents and can clearly (as far as their speech allows) describe what scared them. This phenomenon is a normal part of development, related to brain maturation and imagination.

Why do toddlers have nightmares?

The emergence of nightmares at age 2‑3 is normal and linked to several important developmental leaps in the child:

• Development of imagination: The child gains the ability to fantasize. They begin to imagine things that do not actually exist. This new skill "works" at night as well, creating vivid, but sometimes scary images.
• Processing daytime impressions and fears: Sleep is a time when the brain processes information and emotions gathered during the day. New fears (darkness, separation, cartoon characters), conflicts at preschool, watching scary content — all of this can "turn" into nightmares.
• Stress: Any significant changes in the child's life (birth of a brother or sister, moving, parental arguments) can increase anxiety levels and provoke scary dreams.

What should parents do?

The main task for parents after a nightmare is to calm the child and restore their sense of safety. It is important not to dismiss their fear ("it's just a dream"), but to acknowledge it ("yes, it was scary, but you are safe, I'm here"). Unlike night terrors, where the child does not recognize you, after a nightmare they desperately need your presence and comfort. Sleep problems are a common phenomenon, discussed in more detail in the article "Sleep problems in children".