Apple Watch sleep app will not save whenever I set it up, resets every time I close it.

I have tried to set up my Apple Watch sleep app schedule and data, but every time I close out of the app- it resets every thing I just put in. I have tried this many times after every update after getting the watch and get the same result every time, resets it as if I entered the app for the first time by explaining the steps on how to set it up despite already doing it. I have tried not closing out the app and then sleeping with it on, but it just will not collect any data. I am currently on watchOS 11.5 and I have an Apple Watch SE (2nd generation). Any help??