How to prevent a Bluetooth keyboard from auto-sleeping on Mac?

I use a Bluetooth keyboard that can connect to multiple devices and it is pretty decent, but its auto-sleep (power saving) function drives me crazy, especially when I'm on a call and stop typing for a few minutes, then when I have to type in a question or answer, the first characters get lost (I can't win any group quizzes unless I keep pressing keys on my keyboard to keep it awake :-P). It is very annoying having to press a few keys and wait a few seconds before I start typing, whenever I stay 5 minutes without touching any key (eg. reading, calls, etc.). On Windows, we have a setting to prevent a Bluetooth device from entering sleep mode, but I couldn't find anything similar for macOS. * Is there a way to prevent such devices from sleeping (entering standby mode) on a Mac? Currently on an Intel-based Macbook Pro, running Ventura 13.2.1, using a JOYACCESS JA-KB07 low-profile Bluetooth keyboard. **Edit:** I contacted the JoyAccess support and they weren't helpful. It seems there are issues to understand the issue and questions in English and I don't speak Chinese to properly communicate with them. They just gave me some unrelated model manual with instructions on how to pair the keyboard with a computer and mouse. * The Windows setting prevents the computer from turning off the device to save power but doesn't prevent the device itself from entering power-saving mode.