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GUEST SERIES | Dr. Matt Walker: The Biology of Sleep & Your Unique Sleep Needs
Huberman Lab
**Sleep Quality Over Quantity. Efficiency in tracker **
The effectiveness of sleep cannot solely be measured by duration; the quality of sleep is equally, if not more, important. Sleep quality is determined by continuity, meaning the consistency of sleep without interruptions. Poor sleep quality is characterized by frequent awakenings during the night, leading to fragmented sleep and ultimately low sleep efficiency. Even if an individual spends a significant amount of time in bed, such as nine hours, if they experience substantial wakefulness during that period, their actual sleep quality suffers. Sleep efficiency is a critical metric that highlights this issue, defined as the percentage of time spent asleep compared to the total time in bed. High sleep efficiency indicates fewer interruptions and better overall quality of sleep, emphasizing that one’s focus should be on improving the quality of sleep rather than merely increasing its quantity.
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