Sleep
Lights out, but the brain keeps running — still wide awake an hour later, then impossible to wake for school. Why an ADHD brain's sleep signal fires about 45 minutes late (a delayed clock, not bad behavior), what the evidence actually backs — a fixed wake time, a consistent wind-down, morning light, and early-evening melatonin as the prescriber's call — and which popular fixes to skip.
Not medical advice
A practical, plain-language reference. It doesn't replace assessment or treatment from a clinician who knows the individual.