Most Commonly Used Sleep Tracker Metric

Among survey respondents who use a sleep tracker, these were the metrics people paid the most attention to.

Bar graph of the sleep-tracker metrics people paid the most attention to. Sleep duration 75.20% Sleep score 58.54% Deep sleep duration or percentage 57.32% Number of awakenings 53.66% REM sleep duration or percentage 50.81% Heart rate or heart rate variability 50.41% Other metric 2.85%