I have a similar system, I imagine myself in an elevator going down and as it goes down I fall asleep. Before finding this system, I would need at least an hour

I have a similar system, I imagine myself in an elevator going down and as it goes down I fall asleep. Before finding this system, I would need at least an hour to fall asleep. I think it works by quieting my internal voice and giving an image to the process of going to sleep.