Sleep trackers are essential tools for optimizing your sleep. They provide objective data on sleep stages, HRV, heart rate, and recovery that you can use to identify problems and measure improvement. Below are detailed guides for the most popular sleep tracking devices.
Whoop 4.0
0-100%Whoop is a subscription-based fitness wearable focused on recovery, strain, and sleep tracking. It uses HRV, resting heart rate, and sleep stages to calculate your daily recovery score.
Oura Ring Gen 3
0-100Oura Ring is a smart ring that tracks sleep, readiness, and activity. Its ring form factor makes it comfortable for sleep tracking and provides accurate overnight data.
Apple Watch Series 9/Ultra
0-100 (Sleep Score)Apple Watch provides comprehensive sleep tracking including sleep stages, respiratory rate, and blood oxygen levels. The watchOS sleep app offers sleep schedules and wind-down features.
Eight Sleep Pod 3/4
0-100 (Sleep Fitness Score)Eight Sleep is a smart mattress cover that actively controls bed temperature and tracks sleep metrics. It uses ballistocardiography and temperature sensors for detailed sleep analysis.
Garmin Fenix/Venu Series
0-100 (Sleep Score)Garmin watches offer comprehensive sleep tracking with their Body Battery feature, sleep score, and detailed sleep stage analysis. Known for excellent battery life and accuracy.
Fitbit Sense 2/Charge 6
0-100 (Sleep Score)Fitbit offers accessible sleep tracking with Sleep Score, sleep stages, and smart wake alarms. Their Premium subscription unlocks detailed sleep insights and personalized guidance.