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I just have to say that I find it odd that throughout the night I can wake up 27 times and my sleep efficiency is still 91%??? How does that happen? Maybe I don't understand this data correctly...
there are still technological limitations when it comes to measuring sleep. one thing you can do though is get enough data with your fitbit to form a trend of some sort, then work from there. if your graph is tight with not so much highs or lows (plus, you aren't feeling tired or sluggish the rest of the day), you are sleeping right.
Isnt sleep efficiency just actual sleep time divided by time in bed? So if each of your wakeups is only a bit less than two minutes each, which should add up to 40 minutes, if we assumed your actual sleep time is 7:30 which equals time bed is 8:10. Then 91% sleep efficiency should be about right.
Or i might be completely wrong about how sleep efficiency is calculated.
Also remember that fitbit calls movement 'awake'. You go through sleep cycles about every 90 minutes and during the time of the lighter sleep it is normal to move around a bit more. Every time you move your fitbit logs this and then you get the restless or awake data, but sometimes 'awake' is simply more movement.
Can you pleae explain why the readings are so totally different on the two different settings for the sleep. With normal I usually have about 6 hrs with the sensitive setting I have about 4 hrs big difference, I'm confused
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