The polling from Trainerize to the FitBit app for sleep is incorrect. The sleep reported from Trainerize is different (higher) than what FitBit is reporting. It's appears to be scaled or it's returning the decimal value of the minutes and not the actual minutes. I.e. 30 minutes = 0.5. So 6 hours & 30 minutes of sleep in FitBit is being translated to 6.50 and labeled as 6 hours 50 minutes. Or you know it could also be something else....