A 15-Year-Old Boy with Mysterious Variability in Apnea-Hypopnea Index.

A 15-year-old boy presented as a direct referral for polysomnography for evaluation of snoring, unrefreshing sleep, and daytime sleepiness despite a self-reported average of 8 hours of sleep a night. The mother reported he snored intermittently, although there were no witnessed apneic episodes or fragmented sleep. He denied morning headaches. He reported that his sleep was generally unrefreshing and he would experience significant daytime sleepiness, especially after school or when doing his homework. However, his Epworth Sleepiness Scale score was only 3 of 24. He denied any symptoms consistent with a movement disorder, parasomnia, cataplexy, hypnogogic/hypnopompic hallucinations, sleep paralysis, circadian rhythm disorders, or insomnia. He reported a family history of sleep apnea in his grandfather.