Hello JB7777,
Thank you for reaching out to Apple Support Communities.
Have you verified the alarm was enabled in your sleep schedule:
"Set up your first recurring sleep schedule
When you set up a Sleep Focus, you can set your next bed and wake up times. This schedule repeats only once. To set up a recurring sleep schedule, do the following:
- In the Health app, tap Browse at the bottom right, then tap Sleep.
- Scroll down to Your Schedule, then tap Full Schedule & Options.
- Tap Set Your First Schedule, then select your options:
- Set the days for your schedule: Tap a day at the top of the screen to add or remove it from your schedule. The schedule applies only to days shown with solid-color circles.
- Adjust your bedtime and wake up schedule: Drag
to change your bedtime,
to change your wake up time, or the semicircle between the icons to shift both times simultaneously.
- Set the alarm options: Turn Alarm on or off.
- When Alarm is turned on, you can choose a sound, its volume, a vibration, and the snooze option.
- Tap Add.
"
Additional details can be found here: Set up a Sleep Focus schedule in Health on iPhone
If the issue persists, can you provide a few more details? Also, what is your exact iOS version?
Cheers!