I've written some stories for an app under the name of Gillian Rogerson. The app is called Sleepiest, and it has many sounds and sleepy stories to listen to which help you fall asleep within minutes. I've used it many times and I'm always amazed at how quickly I nod off.
Here is the story which I've written :
The app is only available on iTunes at the moment. I'll put the link in case you want to have a look at it.