Sleep problems are among the most common concerns parents bring to pediatricians and among the most overlooked contributors to child mental health difficulties. The relationship between sleep and psychiatric symptoms is bidirectional: conditions including ADHD, anxiety, and depression disrupt sleep; disrupted sleep worsens those conditions. Addressing sleep problems often produces improvements in daytime functioning that are independent of — and sometimes larger than — the effects of other treatments.
Drawing on Foundations of Psychiatric Sleep Medicine, this article explains what parents and clinicians need to know about sleep in children and adolescents.
How Much Sleep Children Need
The American Academy of Sleep Medicine recommends: infants 4-12 months need 12-16 hours; toddlers 1-2 years need 11-14 hours; preschoolers 3-5 years need 10-13 hours; school-age children 6-12 years need 9-12 hours; and teenagers 13-18 years need 8-10 hours per 24 hours. Many children and adolescents do not meet these recommendations, and the consequences accumulate.
Insufficient sleep is associated with difficulties in attention, memory, emotional regulation, and behavioral control. In adolescents, chronic sleep deprivation is linked to increased risk for depression, suicidal ideation, academic decline, and motor vehicle accidents.
Sleep requirements: School-age children need 9-12 hours per night. Teenagers need 8-10 hours. Most adolescents on school nights get fewer than 7 hours. The circadian shift during puberty — delaying sleep onset by approximately two hours — is biological, not behavioral.
Common Sleep Problems
Behavioral insomnia is the most common sleep complaint, characterized by difficulty falling or staying asleep related to learned associations. Treatment involves establishing consistent bedtime routines and gradually teaching independent sleep initiation. Delayed sleep phase syndrome is particularly common in adolescents, reflecting the biological circadian shift of puberty. When combined with early school start times, the result is chronic sleep deprivation. Management includes evening light management, consistent wake times, and gradual bedtime advancement.
Practical Strategies
| Problem | Evidence-based solution |
|---|---|
| Child cannot fall asleep independently | Gradually withdraw from the bedtime routine over 1-2 weeks. The child learns self-soothing through incremental independence. |
| Teen cannot fall asleep before midnight | Remove screens 1 hour before bed, bright light exposure in the morning, consistent wake time including weekends. |
| Nighttime screen use | No screens in the bedroom. Charge devices outside the room. Blue light suppresses melatonin; content stimulates the brain. |
Conclusion
Sleep is foundational to child mental health. Every clinical assessment should include a thorough sleep history. Effective interventions exist for most pediatric sleep problems, and addressing sleep often improves daytime functioning more rapidly than any other single intervention. Children need sleep. Many are not getting enough, and the consequences are real, measurable, and preventable.
