Logging sleep start an hour late

[SunsetRunner]

My Inspire HR (which I bought in December of 2019) was tracking my sleep correctly until Jan 3, when all of a sudden it started recording my sleep start as over an hour later than what it should be. I have it synced to an Android Galaxy  S10e. This problem just started out of nowhere, and it's impacting my husband's device as well. Obviously this isn't something BOTH of us are simultaneously "doing wrong" all of a sudden, on brand new devices. What gives?

[YojanaFitbit]

Hi @SunsetRunner nice to see you around. Thanks for posting your inquiries about your Fitbit Inspire HR devices. 

I'd like to mention that autodetection is based on your movement. When you haven’t moved for about an hour, your device assumes that you’re asleep. Additional data such as the length of time your movements are indicative of sleep behavior (such as rolling over) help confirm that you’re asleep. Morning movement tells your tracker that you’re awake. If you’re not moving but not asleep for long periods of time it’s possible for your device to falsely record sleep, in which case you can delete the sleep log from your history.

You have the option to fine tune your sleep history in the Fitbit app by editing or deleting sleep logs. For more information, see How do I change my sleep history?

If you think that your sleep information is inaccurate you can restart your Fitbit too.

Let me know if you have questions about this.