Fitbit heart rate oddity

Post date: 2020-10-23 15:29:07
Views: 240
I have a Fitbit Inspire HR, and I just noticed that my heart rate spiked to 130 BPM from 74 BPM while I was asleep last night.

I definitely don't remember that happening. The app shows that I was in a light stage of sleep at that time, not REM, which would make sense. Could it just be a weird error? It seems to have been pretty accurate up to now.
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