Hi tlfmd,
You can set a notification alert for Calendar events in the Calendar app: Create and edit events in Calendar on iPhone - Apple Support
This function is separate from setting an alarm on the iPhone, which uses the Clock app: How to set and change alarms on your iPhone - Apple Support
You can also set specific sleep schedules and alarms with the Sleep feature on your iPhone: Track your sleep on Apple Watch and use Sleep on iPhone - Apple Support
All three of the above are separate functionalities, and creating one should not affect the others. For example, if an alarm and Calendar event are both set for 4:00 AM, they will both alert you at 4:00 AM.
If you are having trouble managing alarms and notifications for these apps, please respond back with the following information so we may gather a better understanding:
- What iPhone are you using, and what iOS is currently installed it:
- What app, or apps, are you using?
- What exactly are you trying to do?
- What exactly happens when you do it?
Please provide your answers in as much exact detail as possible.
Best!