My heart rate jumps every time I get up to go to the bathroom. Also, a Sleep Number bed shows exactly how long you were in bed, how long it took to fall asleep, etc. Actually, my Fitbit indicates that as well, but not in bar chart form.I wonder if LE checked AG and husband's phones (or any other potential POIs') for health monitoring data for the night of 2/7, especially if they were wearing Apple Watches. That would tell a lot, such as activity levels during the night. If there is no data for that night, or a shortish period starting before the disappearance, that might be pretty informative too.
Correction: the Fitbit also shows a bar chart type sleep pattern throughout the night.
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