Hello, Rachie-79.
Thank you for using Apple Support Communities.
From reading your post, it's understood you're having troubles with Downtime. We'd be glad to help. Your Apple Watch mirrors your iPhone. Have you checked your Downtime settings in Screen Time: Use Screen Time on your iPhone, iPad, or iPod touch
"Downtime
Think of this as a nap for your screen time. When you schedule downtime in Settings, only phone calls and apps that you choose to allow are available. Downtime applies to all of your Screen Time-enabled devices, and you get a reminder five minutes before it starts".
Check to see if you have "Share across devices" turned on as well.
Best regards.