USC S9+.......I called Samsung today 6/20 with a question unrelated to updates......6 hrs later I got an OTA update.....under software info it all reads June 2018.
My Samsung devices have done this since 4.0. I have my screen time out at 15 seconds so it turns off. As far as the middle of the night.....I just have my phone face down and don't see the light go on for that 15 seconds
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