Sleep Health Guide 2026

Sleep health is the multidimensional pattern of sleep that supports physical and mental functioning - including duration, timing, regularity, efficiency, and subjective satisfaction. In 2026, sleep is widely recognized as one of the highest-leverage health behaviors, on par with exercise and nutrition. Most adults need 7-9 hours; consistent timing, morning daylight, and a wind-down routine matter as much as total hours.

Educational content only - not medical advice. In a crisis, call or text 988 (US) or your local emergency number. See crisis resources.