You can turn off "Good Night, Mario!" by following the instructions below.
*The method is the same for "Good Night, Yoshi!" in "Hello, Yoshi!"
■iOS/Android
- Start up the app, and tap the gear icon in the top-right corner of the screen.
- Tap the illustrations in order as instructed, and the Settings screen will appear.
- Tap the clock button on the bottom-right.
■Nintendo Switch/Nintendo Switch 2
- Open the app.
- When Mario's cap is on the bottom part of the screen, push in the L Stick or R Stick and hold the + Button or − Button for around 2 seconds.
- Tap the clock button on the bottom-right.