sleepphones
The first time around, I listened to my HB tracks on speakers connected to my iPod. The second time around, that seemed less feasible. Then I found these:
These are awesome! It's basically a fleece headband with speakers inside but the key part is that the cord comes out the back. I could lie on my side with my iPod under my pillow and the cord from the sleepphones just going from the back of my skull to under my pillow. Nighttime strangulation anxiety begone!
Purchased on Amazon. $38