Another question I guess....

I've long been a less than average sleeper. I've learned over the years that the one thing that sends me off to sleep is listening to the sound of my own breathing and matching it with the sounds waves make when they crash into the beach. It helps calm me, erase any worries and sends me off to sleep. I wonder if a recording or something like this (even my own imagination doing it) will help? I need to stay calm. I'm usually pretty good during something that's intense, but I felt a bit out of control last labour and I really need to reign it in this time.