Not OP but Librivox has a bunch of Lovecraft, Howard, HG Wells, Mark Twain, etc that I use. I often listen to books that I've listened to before, or that I don't really care about.

I turn it down low enough that I can barely hear it anyway; just enough to provide a mild distraction. Now I can fall asleep in less than ten minutes like clockwork.

cool. the mild distraction is what i am after and as i said in the other comment, i usually fall asleep within 3-4 minutes. then there are books that i aggressively listen to and can take up to a few hours for me to sleep but i like it even then

the audible app has a sleep timer you can set that will turn it off after a specified period of time. 15 mins is usually enough for me.

voice. android app. does what i want. auto sleep timer bookmarks