This is really annoying. In creative mode, I am able to break through the last layers of bedrock and die - in creative mode. I am just starting to play the Java edition, and am not used to this, as it's not a possibility on our console.
Is there a way to put an unbreakable floor in the world in creative mode? Or at least not die if I break through? I want to create more than I want to play in survival mode, so I hate this so much.