Why high Caleries in the night

[SunsetRunner]

So my graph in the dashboard shows intense calorie burn at night - higher than my daytime Zumba class. Any ideas why?  See here, same day:

Here on the calorie view this peak shows!?

Thanks

[StephanieFitbit]

@SunsetRunner Thanks for adding those screenshots! That does sound strange. Is this happening every night? It sounds like a glitch for that day. If it happens again please report this to our Support Team at http://contact.fitbit.com and let them know specifically what happened. They would need to take a look at your device's history. 

[lynnbaum]

So were you dreaming about running from zombees? 

[Rich_Laue]

@SunsetRunnerThe peak that you point with the yellow arrow I see is not fluctuating.

This is usually a sign of a manually added activity, did you want to add an activity for the PM and it went in as AM?