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I’ve introduced two new devices into my personal human instrumentation experiment. In addition to my Zeo, I am now carrying around a FitBit and using a Withings scale. I’ve discovered the mild embarrassment associated with having a scale mis-tweet your weight by 10 pounds too much (e.g. “Brad – you gained a lot of weight recently – everything ok?”) But I suppose that is part of the experiment.
The comparison on the Zeo and FitBit sleep data is fascinating. Take a look. Zeo from last night first.
Now the FitBit from last night.
The Zeo breaks things down into four categories: Wake, REM, Deep Sleep, and Light Sleep. The FitBit only has two: Active and Asleep. My FitBit time setting is wrong (it has me going to sleep at 9:17 but I went to bed at 11:10 – I’ll need to figure out how to fix that). But both have me in bed for a little over 9 hours, although the FitBit thinks I was only asleep for 8:17 of it. The Zeo has me asleep for 97% of the time; the FitBit has me at a Sleep Efficiency of 95%.
I need a few more nights of comparative data to completely understand the differences, but I thought I’d toss up a baseline to get started. Oh – and I slept in this morning – I felt kind of crummy and decided to just sleep to try to shake off whatever was creeping up on me.