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Optimized Sleep Efficiency

Meaning

Optimized sleep efficiency is a clinical metric representing the ratio of total time spent actually asleep to the total time spent in bed, indicating a high-quality, consolidated sleep pattern with minimal wakefulness after sleep onset. Achieving high efficiency, typically defined as 85% or greater, is paramount for maximizing the restorative functions of sleep, including memory consolidation and the nocturnal surge of anabolic hormones. Poor efficiency often signifies underlying circadian or endocrine disruption, such as elevated nighttime cortisol.