Ionic thinks I am sleeping when I am not

[RonG32]

My ionic sometimes thinks I am sleeping when I am not.  I go to bed around 9 pm.  The next morning when I check my sleep for the night before it logs my sleep as starting as early as 7 pm.  The only thing I can think of is that that is about the time when I settle in to watch some TV before bed.  I am pretty sedentary for that last couple of hours before bed.  

Any ideas?

Moderator edit:Updated subject for clarity 

[SilviaFitbit]

Welcome back to the Fitbit Community @RonG32. Thanks for the details shared about what you're experiencing. Sorry for the delayed reply. 

Fitbit estimates your sleep stages using a combination of your movement and heart-rate patterns. When you haven’t moved for about an hour, your tracker or watch assumes that you’re asleep. Additional data—such as the length of time your movements are indicative of sleep behavior (such as rolling over, etc.)—help confirm that you’re asleep. While you’re sleeping, your device tracks the beat-to-beat changes in your heart rate, known as heart rate variability (HRV), which fluctuate as you transition between light sleep, deep sleep, and REM sleep stages. When you sync your device in the morning, we use your movement and heart rate patterns to estimate your sleep cycles from the previous night. 

Also, to make sure you get the most accurate reading, check that you're wearing your device properly. It's recommended to wear your device in a snug wristband. Since, your sleep stages are tracked based in your heart rate, please check these tips to improve the accuracy of your heart-rate reading. 

Let me know how it goes.