Experts explain what HRV on your sleep tracker means, and how to improve yours so that you stop waking up at night

AI Briefing

• – Heart rate variability (HRV) is the variation in time between each heartbeat, measured in milliseconds. A high HRV is considered optimal for sleep, indicating good physical and mental recovery. To improve HRV, try practicing stress-reducing techniques such as meditation and deep breathing, and establish a consistent sleep schedule and bedtime routine.