07-03-2016 03:39 AM
29 12
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  1. DroidUser42's Avatar
    This is ok unless you have to get up at 6am
    I wasn't going to comment about going to bed at 3AM and sleeping until 9.
    NBrookus likes this.
    08-04-2015 08:53 PM
  2. NBrookus's Avatar
    NI wonder if that's what the HRV means - note that it wants HIGH variability (cycles).
    Hmmm. My feeling -- and I am by no means a sleep specialist -- would be that you'd want your heart rate during sleep to be significantly lower than your daytime heart rate and stay there for a long time. Then by HRV they would mean that difference.

    if your heart rate is rising an falling at night, that would seem to suggest you are not sleep well. If it's measuring the cycles through the night, I would think that detected sleep would be able to do that.

    Hey, could be both... or neither! Sleep restoration seems to be the topic that gets the most attempts and re-engineering the Band software. I wish they would just tell us. It's hard to call it actionable information otherwise.
    08-05-2015 12:30 PM
  3. DroidUser42's Avatar
    Hmmm. My feeling -- and I am by no means a sleep specialist -- would be that you'd want your heart rate during sleep to be significantly lower than your daytime heart rate and stay there for a long time. Then by HRV they would mean that difference.
    That's one way to look at it.


    if your heart rate is rising an falling at night, that would seem to suggest you are not sleep well.
    Maybe, but I think that's suggesting that sleep is simple. I suspect the sleep process is more complicated then that Sleep actually has cycles - and I'm guessing it might be visible in the HR. The sleep cycle shows that you really are cycling though the stages of sleep and not just unconscious.

    There are apps out there that try to capture that cycle and awake you at the proper moment so you feel good. I'd love to have that added to the Band.
    08-05-2015 02:57 PM
  4. Marcthebald's Avatar
    I think your question is answered very recently by this blogpost on Microsoft You?ve Asked: Why do Sleep Efficiency and Sleep Restoration Matter? ? Microsoft Health Blog

    In short the Band 2 measures how well your body recovers from stress by measuring your HRV. That's not your heart rate but how unrhythmic your heart beats.
    07-03-2016 03:39 AM
29 12

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