I honestly seek out audiobooks to fall asleep to. I will have portions of songs on repeat in my head otherwise and it used to take me an hour to fall asleep. Now I can tell how long it took me to fall asleep because of how far in the book I need to rewind before I can remember something happening. Lately it's been tough to get through a book because I keep falling asleep within 5 minutes.

For long drives it's definitely necessary to have a book you can really get into. I loved the Stormlight Archives done by GraphicAudio because there was music and background noises and each character had a unique actor (or at least an actor playing with different accents). Helped a couple of 11 hours drives pass by.