Same, I have sleep tracks I listen to as well that usually start with a relax/disrupt your self-think exercise and then start describing a scene, like a train ride through pastures, this is not the same as leaving the TV or YouTube running, or an audiobook; it’s intentionally boring and low engagement but it gives you something to focus on listening to so that you don’t get caught up in your own thoughts, similar to the eavesdropping.
My local library gives me a free subscription to Headspace, so I use their Sleepcasts a lot, if it turns out that yours does too; Cat Marina 1&2 are good times, as is the Slow Train, Rainy Day Antiques, and Temple Rain.
Otherwise, I haven’t tried them myself, but my sister is a big fan of https://www.sleepwithmepodcast.com
Interesting. I basically do this to myself by counting two breaths and repeating that count while focusing on the darkness behind my eyelids. If I catch my mind wandering I go back to the simple count and staring at my eyelids again. Works pretty well most of the time as I’m not picturing anything nor am I allowing my inner monologue to run away on me.