Sense not tracking sleep or heart rate

[Nikkoleg]

I have the sense and all this week it hasn't recorded my sleep or heart rate. I also have the premium but it's not recording anything. The battery has been dying faster as well. What do I do?

Moderator Edit: Clarified subject

[SilviaFitbit]

@Nikkoleg Welcome to the Fitbit Community. Thanks for the details mentioned. 

There are a few scenarios where you might see your sleep pattern (which shows your time asleep, restless, and awake) instead of sleep stages:

• If you slept in a position that prevented your device from getting a consistent heart-rate reading or wore it too loosely. For best results, wear your device higher on your wrist (about 2-3 finger widths above your wrist bone). The band should feel secure but not too tight.
• If you used the Begin Sleep Now option in the Fitbit app (instead of simply wearing your device to bed). For more information on automatic sleep tracking, see How do I track my sleep with my Fitbit device?
• If you slept for less than 3 hours.
• If your device’s battery is critically low.

In regards to the Sense's battery not lasting as expected, please follow these tips to extend the battery life. Since you mentioned your Sense isn't tracking heart rate, check out this article for factors that can affect your heart-rate reading. 

In order to provide you with the appropriate troubleshooting, please let me know which Premium features are not showing any data. If you're not seeing Health Metrics data, check our this article for possible fixes if the data isn't displaying. 

Hope this helps.