Childhood and Teenage Insomnia — Causes, Symptoms and Treatment

Insomnia in children and teenagers is more common than most parents realise. It is described as a persistent difficulty falling asleep, staying asleep through the night, or sleep that does not feel restorative — and unlike a temporary patch of bad sleep, chronic insomnia can significantly affect a child’s wellbeing, mood, behaviour and daytime performance.

What causes insomnia in children and teenagers?

Insomnia is rarely caused by a single factor. It usually develops from a combination of:

1. Stress and anxiety — academic pressure, family changes, social difficulties, or emotional worries
2. Screen use — prolonged screen exposure before bed, including the effect of blue light on melatonin
3. Irregular sleep schedule — inconsistent bedtimes and the absence of a clear wind-down routine
4. Medical conditions — allergies, asthma, sleep-disordered breathing
5. Medications — some prescription medications affect sleep quality
6. Environmental factors — noise, light, temperature, or an uncomfortable sleep environment
7. Established insomnia patterns — once sleep difficulty becomes a habit (worry about sleep itself), it tends to persist without targeted treatment

Symptoms of insomnia in children and teens

Symptoms vary by age but typically include:

• Difficulty falling asleep — long periods of tossing and turning before sleep onset
• Frequent night waking — and difficulty getting back to sleep after waking
• Daytime fatigue and sleepiness — affecting concentration, learning, and overall functioning
• Mood changes — irritability, hypersensitivity, tension, or anxiety
• In teenagers: difficulty getting up for school, increased screen use late at night, declining academic performance, and lower mood

Why insomnia matters

Sleep is essential for healthy development. Persistent insomnia in children has been associated with:

• Reduced daytime functioning and attention difficulties
• Lower mood and emotional regulation difficulties
• Reduced cognitive development and academic performance
• Higher risk of injury
• Strain on family functioning and parental wellbeing

What works — practical steps for better sleep

• Limit screens. No screens at least one hour before bed — and keep devices out of the bedroom overnight where possible.
• Optimise the sleep environment. Quiet, dark, cool, comfortable bed.
• Encourage daytime physical activity — but not within the two hours before bed.
• Address stress and anxiety. Talk through worries earlier in the evening, not at bedtime, and teach simple relaxation techniques.
• Consistent sleep schedule. Same bedtime and wake time every day, including weekends — within reason.
• Seek professional assessment when the problem persists, affects quality of life, or is paired with significant anxiety.

When to seek professional treatment

Insomnia in childhood and adolescence is highly treatable. Cognitive Behavioural Therapy for Insomnia (CBT-I), adapted for the child’s age, is the first-line evidence-based treatment — recommended ahead of sleep medication for almost all young patients. Treatment typically runs for 4–8 weeks and produces lasting change, in contrast to sleep medications which only mask the underlying pattern.

For teenagers in particular, treatment also addresses:

• The biological shift in circadian rhythm during puberty (later bedtime/wake preference)
• Worry-driven insomnia (the loop of “I won’t fall asleep” thoughts)
• Caffeine, alcohol, and screen-based contributors
• Sleep restriction and stimulus control techniques adapted for adolescents

Your child’s path to better sleep

Childhood and teenage insomnia is a real challenge, but with understanding, patience and the right guidance, significant improvement is achievable. Early identification, addressing the underlying drivers, and applying evidence-based sleep techniques can transform your child’s nights — and their days.