>I really started doing new things with a machine once I had my own and could run 12 hour jobs overnight.
You are exposing yourself to fire risk by running a hobby machine unattended for any period of time, and you are compounding it by not being conscious.
I have a sprinkler system in my shop and the shop is isolated. I also only use upcut bits for overnight jobs and the CNC is in the middle of the shop on a concrete floor away from anything else. It’s a risk I’ve considered and tried to minimize.
You are exposing yourself to fire risk by running a hobby machine unattended for any period of time, and you are compounding it by not being conscious.