Hello bm3088,
Welcome to Apple Support Communities!
It sounds like you're referring to downtime on demand. Let's make sure you're using these steps to toggle off the feature:
"During downtime, only calls, messages, and apps you choose to allow are available. You can receive calls from contacts you’ve selected to allow communication with during downtime, and you can use apps you’ve chosen to allow at all times.
When you turn on downtime on demand, a five-minute reminder is sent before downtime is turned on. It stays on until the end of the day, or until the beginning of your scheduled downtime, if you’ve scheduled it.
- Go to Settings
> Screen Time, then turn on Screen Time if you haven’t already. - Tap Downtime, then tap Turn On Downtime Until Tomorrow, or Turn On Downtime Until Schedule (if Scheduled is turned on).
- To turn off downtime on demand, tap Turn Off Downtime.
Note: You can also turn on downtime on demand for a family member, either directly on their device, or through Family Sharing on your device."
This Apple Support page has the full details: Set up Screen Time for yourself on iPhone - Apple Support
This should help ensure the setting is correct to disable the downtime feature. Restart both devices and try again if needed.
Please let us know if you have further questions.
Cheers!