I use a Pillow Speaker from Amazon and I use music with a solid beat such as Podrunner They say workout mixes and in days long gone when I had the motivation they were excellent.. I focus on the deep beats and I nearly always drop off to sleep. If I don't want that music I pick stuff I know and really like.
I don't know if I've slept better as a result because I'm in an early waking patch but I do get to sleep better, I do not lie there wondering what I need to do to get the eyes to close and sleep to work.
I recommend them.