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Read all the comments....I'm good the way it is.
Light sleep and deep sleep with number of times waking up is fine with me.
Qualifying sleep seems arbitrary anyhow.
Take the data and come to your own conclusion.
The reason I was considering the Up over fitbit et al was because of the sleep features of the first band. Please bring back the quality sleep feature. Quality is always better than quantity.
Allow me to enter a contrary opinion here. I used the UP v1.0 (three of them) for a total of nine months and mostly used the sleep feature (manually setting / unsetting). The sleep quality rarely corralated to my feeling of restfulness upon waking. It seemed utterly arbitrary and almost a "gimmick" feature. I'm glad Jawbone went back to objective data.
Sleep "quality" is different for everyone. Furthermore, people naturally move more or less during sleep - and this is ALL that UP can measure. It is not really measuring "wake time"; it is only an estimate based on an average person's time between motion events on their arm. There have been many nights when I have laid awake for an hour or more and UP registers it as sleep.
I would much rather Jawbone add additional sensors and enhance the algorithms used on the accelerometer. For instance, heartrate can actually be derived from micro-vibrations in the wrist IF the body is very still - like when sleeping! Therefore, resting heartrate (a very good measure of overall fitness) can be obtained at night. Much more can be done, and I'm sure the bright people at Jawbone (and Fullpower) are aware of many.
I would LOVE some kind of quality component to the sleep feature. Tracking the sleep and showing the hours of deep sleep vs. light sleep is great, but I have no idea what it means for me.
For those who don't know, sleep quality, while not available in the app is still available via the .csv file you can download from your account.
Does anyone know how sleep quality was computed?
I also would like to see some better info on the sleep quality. I also suffer from sleep apnea and wanted the jawbone to help with this.
One thing that seems suspicious is that I a borderline mild/moderate sleep apnea. Most nights the UP reports only waking up a couple of times. Granted the UP doesn't track my breathing but surely I would move when I can't breath.
Just chiming in .... sleep quality seems important. I got the UP over FitBit and BodyBugg because of the more advance sleep tracking capabilities. I would like as much info as possible on my sleep as it affects everything else I do during the day. Please bring back sleep quality.
I would very much like a sleep quality quotient in the app. If I sleep 8 light hours with lots of awake periods and little REM, that's not quality sleep and I feel terrible. Quantity is NOT quality.
I posted about this in another thread regarding sleep and the Up, but I feel it's also relevant here. I can understand how many of you feel that having the device give you insights into your sleep habits is useful, but you should really focus more on how you feel, what you're doing throughout the day, within a few hours of bedtime, etc. A bracelet, even the Up, is not going to give you a truly accurate portrayal of your sleep stages, quality, etc. Please allow me to explain.
In November of 2011, I was diagnosed with a condition called narcolepsy with cataplexy. In order to receive this diagnosis, as with the diagnosis of sleep apnea, you must go through a very specific sleep study, performed in a professional sleep lab. For narcolepsy with cataplexy, there are actually two sleep studies performed. In order for the sleep technicians to collect enough data about your sleep to create an accurate picture of your sleep stages, quality, etc., you are put in a room with video and audio monitoring. You are affixed with a few dozen electrodes about your head, face, and body. You have to go through a period of moving different parts of your body and face in different ways so that the technicians can be sure everything is attached, set up, and calibrated properly. Then you must sleep in the midst of all of this.
Even just a single electrode, or point of data collection, at the head cannot collect data well enough to accurately provide a picture of your sleep patterns. That's why even devices like the Zeo are extremely fallible. There is no device on the market that a consumer can purchase to give them a truly accurate portrayal of their sleep. In order to get such a picture, you have to get a real sleep study.
Now, you can certainly compare your sleep data, over a few weeks' time, to see how things affect your sleep. The bracelet is obviously going to show when you moved around more (possibly as a wake-up), and when you were more restful and still. But please, don't think it's the gospel on your sleep patterns. You don't have to take my word for it, though. You can easily make an appointment with a board certified sleep specialist and ask them how accurate devices like the Up, FitBit One (which I also have! and which is more inaccurate than the Up!), and the Zeo are for giving detailed sleep stage data.
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