3 ms·
How do you know if it's "catching" anything other than noise? Have you done any kind of comparison against a gold standard method like a sleep study? From what
by iClaudiusX 9y ago
How do you know if it's "catching" anything other than noise? Have you done any kind of comparison against a gold standard method like a sleep study?
From what I can tell, none of these accelerometer-based methods work at all and the companies pushing these as sleep trackers are making false claims.
- OrwellianChild 9y agoLike I said, accuracy isn't so much the goal... The readouts I get show pretty consistent measurements over time, which gives me enough confidence to compare them to other Fitbit users among my friends/family as well as to myself over time (see the alcohol anecdote above). Setting the sensitivity to "normal" just raises the noise floor in their filter so high that it obscures the data.On sensitive, I've never had issues with it identifying "sitting" as "sleeping", yet it still effectively tracks my sleep (including periods of wakefulness immediately pre- and post- slumber in bed as well as mid-night disruptions that wake me up). This suggests that I'm getting pretty good data (though not equivalent to a sleep study with ECG/EKG equipment). In this case, "good" is good enough for my uses.
- SEJeff 9y agoI've done a sleep study at a hospital to see if I was an actual insomniac or had sleep apnea. It turns out I slept like absolute crap at the study mainly because the thing they put up my nose tickled my nose hairs and the thing on my head was uncomfortable, so I just was restless the entire night.