PeakWatch
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  • English
  • Deutsch
  • 日本語
  • 简体中文
  • 繁體中文
  • User Guide

    • How to enable AFib
  • Key Metrics

    • What is "Body Battery"?
    • Recovery Score
    • Exertion Score
    • Learn More About Sleep
    • Energy Consumption
  • Training Data Metrics

    • Maximum Oxygen Uptake (VO2max)
    • What is Heart Rate
    • Heart Rate Recovery
    • Post Workout HRV
    • Training Intensity
  • Vitals

    • What is HRV?
    • What is Resting Heart Rate?
    • What is Respiratory Rate?
    • What is Blood Oxygen Saturation (SpO2)?
    • What is Wrist Temperature?
  • Service Agreement

    • Terms of Use
    • Privacy Policy

Dimensions of Sleep Quality

Our sleep quality assessment consists of five core dimensions:

  • Total Sleep Time
    The actual duration of sleep you obtain each night.

  • Restorative Sleep
    The proportion of deep sleep and REM sleep, reflecting the recovery of the body and brain.

  • Sleep Continuity
    Whether sleep is frequently interrupted and can maintain a stable state.

  • Sleep Efficiency
    The ratio of actual sleep time to total time spent in bed.

  • Sleep Regularity
    Whether bedtime and wake-up time remain consistent, indicating regular sleep patterns.

Focusing on these five dimensions allows for a more comprehensive understanding and improvement of your sleep quality.