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One of the reasons I bought my Fitbit is to look at my sleep patterns. (In hindsight, I only look once every few months)

The data is surprisingly accurate, and sleeping with a watch on doesn't bother me one bit. (I use a silicon watch band, the dressier watch bands would probably bother me.)

One great thing about a smartwatch is that you don't have to remember to put it on before going to bed. Better yet if it's one of the models with a long enough battery that you can just wear it and forget about it completely.

I only take it off (and charge it) when I shower or go in the hot tub. The battery lasts a few days, which is long enough for me to take it on 2-3 day trips without charging it.

> The data is surprisingly accurate

How do you know?

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