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It's nice to see you around @Happyjack2790 
! Is this the first time you have this kind of discrepancy? Have you tried restarting your HR?
As a friendly reminder, your Fitbit tracker's settings can record your sleep in either "sensitive" mode for extremely detailed sleep reporting or "normal" mode for a more basic idea of your sleep patterns.
- The normal setting counts significant movements as being awake (such as rolling over) and is appropriate for most users.
- The sensitive setting will cause your tracker to record nearly all movements as time spent awake. This setting may be helpful for users with sleep disorders, or those who wear their tracker somewhere other than the wrist while asleep.
If your Fitbit tracker is worn consistently each night with the same setting, the data that it produces should be useful. To change your setting in the Fitbit iOS app, go to Account >Advanced Settings > Sleep Sensitivity. To change your setting in the fitbit.com dashboard, go to Settings > Devices > scroll down to Sleep Tracking.
We use the following equation to calculate your sleep efficiency: 100 * time asleep / (time asleep + time restless + time awoken during sleep)
The time it takes for you to actually fall asleep is not incorporated into this calculation. If you don't move all night it is possible to get 100% sleep efficiency even if it takes you 20 minutes to fall asleep.
Tossing and turning during sleep can occur during an unconscious state; however, it does not indicate total rest. If you feel that the reported number of times awakened is excessively high, go to the Sleep Sensitivity setting to see if your sleep tracking mode is set to sensitive. A normal setting may be more appropriate if you are looking for a more general overview of your sleep patterns.
Have a nice day!
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