For Americans the most common sleep disorder is:

For Americans the most common sleep disorder is:

• A. Obstructive sleep apnea
• B. Insomnia
• C. Narcolepsy
• D. Central sleep apnea

Answer: (B)

Insomnia is the most common sleep-related problem that Americans report. It isn’t about a single disease but a pattern of difficulty with sleep—trouble falling asleep, staying asleep, or waking too early with nonrestorative sleep—often with daytime consequences like fatigue, concentration problems, or mood changes. Because a large portion of adults experience these symptoms at some point, and a substantial minority meet criteria for insomnia disorder, it surpasses other sleep disorders in prevalence. Obstructive sleep apnea, while common and clinically important, has lower overall prevalence as a sleep disorder diagnosis, and narcolepsy and central sleep apnea are comparatively rare.

Insomnia is the most common sleep-related problem that Americans report. It isn’t about a single disease but a pattern of difficulty with sleep—trouble falling asleep, staying asleep, or waking too early with nonrestorative sleep—often with daytime consequences like fatigue, concentration problems, or mood changes. Because a large portion of adults experience these symptoms at some point, and a substantial minority meet criteria for insomnia disorder, it surpasses other sleep disorders in prevalence. Obstructive sleep apnea, while common and clinically important, has lower overall prevalence as a sleep disorder diagnosis, and narcolepsy and central sleep apnea are comparatively rare.