Insomnia Rate

1 in 5 adults; Description: Ongoing difficulty falling or staying asleep; Effects: Chronic tiredness, higher risk of depression, obesity, hypertension, and pain.

Narcolepsy Rate

1 in 2000 adults; Description: Sudden attacks of overwhelming sleepiness; Effects: Risk of falling asleep at dangerous moments, attacks last <5 minutes, extra caution needed in everyday activities like driving.

Sleep Apnea Rate

1 in 20 adults; Description: Stopping breathing repeatedly while sleeping; Effects: Fatigue, depression, linked to obesity (especially men).

Sleepwalking Rate

1–15 in 100 adults; Description: Repeated complex motor behavior during Stage 3 sleep; Effects: Few serious concerns, usually returns to bed on their own, rarely remembers episode.

REM Sleep Behavior Disorder Rate

1 in 100 adults (general), 1 in 50 adults (50+); Description: Acting out dreams while asleep, including vocalizing or motor behaviors; Effects: Risk of accidental injury to self or bed partner.