Hey Grassy1979,
Thanks for posting in Apple Support Communities. It sounds like you may have scheduled downtime. Is that right? If so, make sure that the schedule looks right as that may be what's happening. The following is from Set up Screen Time for a family member on iPhone - Apple Support.
"Set downtime and app limits on a family member’s device
- On your family member’s device, go to Settings
> Screen Time. - Tap Turn On Screen Time, tap Continue, then tap This is My Child’s iPhone.
- To schedule downtime for your family member (time away from the screen), enter the start and end times, then tap Set Downtime.
- To set limits for categories of apps you want to manage for your family member (for example, Games or Social Networking), select the categories.
To see all the categories, tap Show All Categories.
5. Tap Set, enter an amount of time, then tap Set App Limit.
6. Tap Continue, then enter a Screen Time passcode for managing your family member’s Screen Time settings."
Take care.