I suggest you check to make sure that they're not actually sending notifications that say they're turning off the reminder. As far as I know, there's no way to "turn off" a smartphone without deleting it (and any data) from the phone itself. Will resume evening alarm at 7:00 AM and stop morning alarm at 9:00 AM .
If this is still not working, try restarting your iPhone and turning both Bedtime and Alarm on during this time and see what happens.
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