WHOOP calculates how recovered your body is during your Sleep each night and reports your Recovery when your sleep is complete each morning. There are three key metrics that make up your Recovery: Heart Rate Variability (HRV), Resting Heart Rate (RHR), and Hours of Sleep.
HEART RATE VARIABILITY (HRV)
Heart Rate Variability (HRV) is a measure of the difference in the amount of time between successive heart beats, and is captured during your last period of Slow Wave Sleep each night. HRV is an indicator of the health of your autonomic nervous system, and a trending increase in HRV leads to a stronger Recovery.
RESTING HEART RATE (RHR)
Resting Heart Rate (RHR) is a measure of your heart beat when you are at complete rest. This is also captured during your last period of Slow Wave Sleep each night. Lower Resting Heart Rates over time are an indication of improved fitness and Recovery.
HOURS OF SLEEP
Sleep is when your body recovers. Getting more restful Sleep each night improves your Recovery the following day. See below for examples of daily Recoveries