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Are you making sure to use the start Stop Button?
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@Sleepyme welcome to the forums! That's indeed weird. But I'm glad to know that you're all set.
@WendyB is definitely right on making sure that you are using the start/end sleep button as this is how your One will record your sleep. I'll leave the instructions here in case other users are having the same question. 
- Place your One into the sleep wristband and affix the band around your non-dominant wrist.
- Once you are in bed and ready to fall asleep, press and hold the One's button for several seconds. You will see a stopwatch begin to count, and the other tracker icons will blink, indicating that you are in sleep mode.
- When you wake up, hold the button down for several seconds to stop the sleep recording. Your One's icons will stop blinking, indicating that you've exited sleep mode.
Once you exit sleep mode, your tracker will resume displaying daily totals. Sync your tracker to see your sleep stats on the dashboard.
Also, please make sure that you add your votes and comments in this idea in order to integrate Auto Sleep Tracking for the Fitbit One. The more votes and comments it has the more visibility it gains!
Feel free to post back! 
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