Is the sleep function accurate?

[Uri37]

Is the sleep funciton accurate?  Mine is showing that I only get 3 or 4 hours of sleep every night.  Restless for the most part

[SunsetRunner]

I find the sleep function to be very accurate. It shows when I'm restless and my partner corroborates the times sometimes!

Do you have it set to sensitive, rather than normal? Or have a partner/pet that moves around a lot while you sleep? Maybe you're just a fidgety sleeper!

[KitKat001]

I use the sleep funtion and find it to be very accuate. I did a sleep study with my doctor and they let me keep my fitbit on, and my results were almost identical. Love my "One"

[Sealgair]

I can't speak to how exact it is, but I will say that it's "directionally correct". Every morning I can pretty much predict if my total sleep time will be high or low before even looking at it.  And from that perspective, it's accurate.  After you use it a while you kind of develop a "baseline" of what's "normal" and then try and work from that. 

I'll also add that I suspect most of the people that buy a Force for the sleep tracking feature probably do so for a reason, ie. they're having sleep issues.  So I wouldn't be surprised if the values reported here seem lower than normal.

[Tintin]

I got confused when my graph showed I was very active at a time I was supposed to be asleep.  (How can I attach the screenshot here?)  This made me think the sleep function's accuracy.