Blaze summing up wrong calories burned while sleeping

[vivek.j.ca]

Hello. I am using fitbit Blaze for the past 20 days. I do not wear it while sleeping. When i check the KL burned while sleeping in the morning at 4.45 am it shows 340-360 calories burned which ok (passive calorie). But today I found that its showing 1000 calories burned from midnight to 4.45 although it was kept idle on the table. Surprisingly when I checked the timeline , the grah showed avg 17 kl burned every 15 minutes. So from 12 midnight to 5 am the total should be around 400, but its showig 1000 kl.

What could be the possible reason.

[vivek.j.ca]

Hello. I am using fitbit Blaze for the past 20 days. I do not wear it while sleeping. When i check the KL burned while sleeping in the morning at 4.45 am it shows 340-360 calories burned which ok (passive calorie). But today I found that its showing 1000 calories burned from midnight to 4.45 although it was kept idle on the table. Surprisingly when I checked the timeline , the grah showed avg 17 kl burned every 15 minutes. So from 12 midnight to 5 am the total should be around 400, but its showig 1000 kl.

What could be the possible reason.

[Rich_Laue]

OK what other data is the graph showing after midnight? This could be a hint as to what is happening, basically the tracker users heart rate and activity to calculate calorie burn. It also a base lines burn that is based on your BMR

[vivek.j.ca]

Other data like steps taken, floors etc are showing nil. Even heart rate gragh is also showing no data during this period.