Inspired by some recent threads talking about lack of sleep, there is a Audio CD-series with voice actors doing monologues to help put you to sleep.
I had to do some searching but here’s a link to one of the CDs, with voice actor Takaya Kuroda.
They use a dummy head mic (a 3D-recording device) to create a full 3D-audio experience - which isn’t very common. And they do so to full effect - meaning expect whispers in your ears and an audio illusion of a person moving about the room talking to you.
It takes some getting used to! But, it’s pretty neat.
This is a series, so just get the CD with the seiyuu you favor and hopefully they will put you to sleep in no time! ^>^