If you’re thinking of trying it, I recommend having soft targets for scenes or chapters. Some kind of direction. Also it takes a bit of time for the engine to start running. At first it’s kind of weird and you’ll be prompting yourself with like “what’s next what’s next” anxiety but if you tough it out for about 15 minutes then the dream logic kicks in. All these cool things float up from the subconscious. Lots of typos,too.
I write my first drafts on my MacBook in a similar way where I turn the screen off and type away.