What metrics do you use to track your sleep?
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Posted Jul 7, 2017, 5:46 PM UTC
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I used to use a Mi Band (about $10 froma aliexpress) and now I use Forerunner 935. Both give you amount of "deep sleep", and it perfectly correlates with how I feel in the morning.
I found that for me total amount of sleep and when I woke up / went to sleep doesn't matter.
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I think it uses vibration and noise to detect how restless you are. The more you're moving around, the less good the sleep you're getting is. When you're in deep sleep, you don't move at all and it monitors how long you're in that period for. So you check it in the morning and it shows you how many times you cycled into deep sleep and how long those periods were.
Not sure how accurate it is but these types of things seem fairly well accepted as good gauges of your sleeping patterns. You can read up on them pretty easily, lots more info out there than what I know.
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Isn't improving how I sleep improving my fitness?
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Hours slept and how good it felt