I'm not sure about this. I have no sleeping disorder but track my sleep via Fitbit. It helps me plan my sleep. So for example, if I find that I have not slept

I'm not sure about this. I have no sleeping disorder but track my sleep via Fitbit. It helps me plan my sleep. So for example, if I find that I have not slept enough for the night I make sure I retire early the next day. Also, the days I find I have not had enough sleep I don't go for my morning runs so as to avoid injury. Of course relying on body's own signals would do the job but I find that the trackers augment the process. In my experience my quality of life has increased because of sleep tracking.