Fear of the dark in children: understanding, reassuring and supporting your child

It's bedtime. You turn off the light, and immediately your child grabs your arm: "Mummy, I'm scared of the dark!" Millions of parents experience this scene every evening. The good news: fear of the dark is a normal, universal stage of child development. Understanding it better means supporting your child more effectively — with kindness, patience, and a few simple but effective tools.

Why are children afraid of the dark?

A fear deeply rooted in development

Fear of the dark is neither a whim nor a manipulation. It is a perfectly normal neurological and emotional response linked to several developmental mechanisms that are triggered between approximately 18 months and 6 years of age.

In young children, the part of the brain responsible for managing emotions and fear — the amygdala — is far more active and reactive than in adults. It perceives darkness as a potential threat, because in the dark, the brain can no longer control and anticipate its environment.

The key role of imagination

Between the ages of 2 and 5, children develop a rich and vivid imagination. They begin to engage in symbolic play, to pretend, to invent stories and characters. This is a remarkable cognitive leap — but it has a downside: children cannot yet clearly distinguish between what is real and what is imaginary. The monsters under the bed or in the wardrobe are just as real to them as a toy sitting on the shelf. As we explain in our article on symbolic play and the birth of imagination, this period is as rich as it is intense for the developing brain.

Darkness: an unsettling sensory deprivation

Human beings are naturally diurnal creatures. In the dark, vision — the dominant sense — is cut off. For a child who has not yet internalised the idea that the world remains unchanged when it can no longer be seen (object permanence), darkness can generate a sense of abandonment of the familiar, reassuring world. Shadows transform, the ordinary sounds of the house seem amplified, and the brain fills the areas of uncertainty with… imaginary creatures.

At what age does fear of the dark appear — and when does it fade?

Fear of the dark generally follows a predictable pattern, even though every child's experience remains unique.

The 6 mistakes to avoid at all costs

When faced with their child's fear of the dark, many parents react instinctively in ways that, unfortunately, can make the situation worse rather than better. Here are the most common pitfalls.

Setting up the environment: the bedroom as a comforting cocoon

The night light: your number-one ally at night

A night light is the simplest and most effective solution for gradually taming fear of the dark. It allows the child to retain a minimal visual perception of their surroundings, which is often enough to reassure their brain.

Rethinking the layout of the bedroom

The visual environment of the bedroom plays a major role. At night, certain decorative elements can become sources of anxiety: shadows cast by toys, reflections in a mirror, posters featuring characters that look frightening in the dark…

The comfort toy: far more than just a toy

The comfort toy — or transitional object, in Donald Winnicott's terminology — fulfils an essential psychological function: it represents the parent's presence in their absence. A child who is afraid of the dark can find in their comfort toy a source of independent reassurance. Some parents go as far as lightly spritzing their perfume on the toy, further enhancing its soothing power.

The bedtime routine: the cornerstone of night-time security

The bedtime routine is undoubtedly the most powerful tool for helping a child make peace with the night. Repetition and predictability are the best antidotes to night-time anxiety: when a child knows exactly what is going to happen, they can anticipate it and prepare themselves inwardly. Find all our advice on building an effective and soothing evening routine.

Active techniques to help your child overcome their fear

1. Positive visualisation: the imaginary journey

Visualisation uses the power of imagination — the very same power that creates monsters — to build positive, safe mental images. Ask your child to close their eyes and guide them on an imaginary journey to a place they love (their favourite beach, a meadow full of flowers, their summer bedroom at grandparents'…). Their gentle voice, their breathing slowing down: they drift off to sleep in a safe mental space.

2. The "monster-fighting power": turning fear into a game

Rather than denying the existence of monsters (which does not work with a 3-year-old whose imagination is in full bloom), give the child the power to chase them away. A few ideas:

The monster spray: a small spray bottle of water with a few drops of lavender essential oil (suitable from age 3). The child can "treat" their bedroom themselves before going to sleep

The protective guardian: designate a special cuddly toy as the "bedroom guardian", complete with a mission and a name

The exorcist drawing: invite the child to draw the monster they imagine, then tear it up, burn it symbolically, or give it a happy ending

The superhero cape: a piece of clothing or a magical object (bracelet, badge) that gives "courage" at night

3. Tortoise breathing: calming the amygdala

Deep, slow breathing is one of the only direct ways to activate the parasympathetic nervous system and calm the fear response. Teach your child "tortoise breathing":

Breathe in slowly through your nose, filling your tummy like a tortoise pulling into its shell (4 seconds)

Hold your breath for a tiny moment (2 seconds)

Breathe out slowly through your mouth as if you were blowing on a candle without putting it out (6 seconds)

Repeat 5 times

4. Books: bibliotherapy to the rescue

Children's books about fear of the dark help to normalise the fear and create distance from it, showing that others (even imaginary characters!) experience and overcome it. Here are a few essential titles:

Le monstre de poche – Valérie Weishar Giuliani

Pas si sombre – Christiane Pieper-Tisserant

La lampe de chevet – Claude Boujon

J'ai peur du noir – Géraldine Collet

Frisson l'écureuil a peur du noir – Mélanie Watt

Progressive desensitisation: learning to be comfortable in the dark… gradually

The aim is not to force the child to sleep in complete darkness overnight, but to make peace with it step by step, drawing on their own resources and the trust they have built with you.

Normal fear versus pathological night-time anxiety: how to tell the difference?

The vast majority of cases of fear of the dark fall within perfectly normal development. However, in some cases the fear can become intense and persistent enough to significantly interfere with daily life, and then warrants particular attention.

It is also important not to confuse it with night terrors, which are very different episodes occurring during deep sleep, of which the child has no memory upon waking.

Frequently asked questions (FAQ)

Conclusion

Fear of the dark is a universal, normal, and transient stage of child development. It is neither a whim, nor a sign of weakness, nor a parenting failure. It is simply the reflection of a growing brain, an awakening imagination, and a child learning to navigate a world they do not yet fully master.

Your role as a parent is not to erase this fear instantly — that is impossible and counterproductive. Your role is to validate the emotion, provide a safe environment, and gradually equip your child with the resources they need to face the dark. Every child moves at their own pace, and every small step forward deserves to be celebrated.

With patience, kindness, and the right tools, the night will gradually become an ally — the precious time for rest, dreaming, and restoration that both you and your child truly deserve.