If I'm sleepy enough I can easily fall asleep to any music. I can even fall asleep while listening to rock or heavy metal music.
There was a time when I had a tension headache every single day. I was used to sleeping late and I hated waking up early, and it took a toll on me. It felt like I had a heavy ball of nerves tightly packed in the middle of my forehead, in between my eyes and just right above my nose. It was tolerable but got really annoying, especially when I had to work, so I researched on tension headaches and how to relieve them. One of the "treatments" I tried was listening to relaxing music before and during sleeping as well as while I working. I found that it was effective when I listened to instrumental music so my brain wouldn't get distracted with lyrics, especially if I've become familiar or memorized them.
In my quest for instrumental relaxation I discovered Kitarō, a Japanese musician, composer, and multi-instrumentalist. His songs are amazing and listening to them kind of takes you to another place.
