Yes. In fact, I listen to it throughout my sleep or naps...you can say I heavily rely on listening to their gentle voices to sleep. It all started with me having mental issues (not serious don't worry but it's problematic) until it disturbed my sleeping routine and quality, so I rely on the Irish singer Enya's songs to sleep. Then, I found access to otome drama CDs (not r18), listened to it....and slept better. And that's how I developed this habit and heavily rely on listening otome dramas to sleep, I only listen to JP ones back then, now I also have Chinese otome dramas which are just as good as JP ones to sleep.