Sleep and Performance
Find your optimal sleep target with data.
Published March 30, 2026
How sleep affects performance
Sleep duration and quality directly affect cognitive function, reaction time, mood, and physical recovery. Most adults need 7 to 9 hours, but your optimal amount is personal. Tracking reveals your specific threshold.
Track both sides
Log Sleep (duration, quality, interruptions) and track your productivity, exercise performance, and mood each day. Over 4 weeks, you will see a clear correlation between sleep quantity and next-day function.
Related trackers
Frequently asked questions
What is the best amount of sleep?
7 to 9 hours for most adults. But your optimal amount depends on your body. Tracking shows you the duration that correlates with your best days.
Related articles
Best Health Tracking Apps in 2026
Compare the best health tracking apps for symptoms, vitals, medications, and lifestyle. See which app fits your needs for daily health logging.
Track Recovery Alongside Workouts for Better Results
Learn how to track workout recovery. Log exercise, sleep, and soreness to optimize your training schedule.
Optimize your sleep for better days
Track sleep and see what changes.
Start Tracking