Hi Torresgraphics
Welcome to the Apple (user-to-user( community.
As iPhones generally work the way their settings are set,
wondering which list your wife is checking:
Eg:
Turn off alarms and delete sleep schedules in Health on iPhone – Apple Support
Else try checking out:
"Change iPhone sounds and vibrations
eg: Do you recognise the "ghost" alarm sound ...
(You can change the sounds iPhone plays when you get a call, text, voicemail, email, reminder, or other type of notification).
Change iPhone sounds and vibrations – Apple Support
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To remove a regular alarm in the Clock app,
 tap Edit at the top left,
 tap the Delete button , then tap Delete.
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Checkout reminders to see if that is the source of the unwanted alarm:
Add reminders on iPhone
Says:
"Delete a reminder
Swipe left on the reminder, then tap Delete".
Complete article: Add reminders on iPhone – Apple Support
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Change notification settings on iPhone
Eg: Says:
"To turn off notifications selectively for apps,Â
go to Settings > Notifications > Siri Suggestions, then turn off any app."
Complete article: Change notification settings on iPhone – Apple Support
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How to: Turn a Focus on or off on iPhone – Apple Support
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Also:
After you turn off a Focus, it still appears in Control Center and can be reused.
Do either of the following:
âś˝ Touch and hold the Focus icon on the Lock Screen.
✽ Open Control Center, then tap Focus.
Then tap the Focus that’s on to turn it off (eg: tap amount of time set)
All the best :-)