Road tripping with a 7 month old!

I’m moving states (OR->CA) it’s like a 8/9 hour drive and my baby hates being in the car! We are going to be driving at night so hopefully she will be asleep the whole time, but if not what are some good ideas to help? It’s our first time driving far with her, so if anyone else has had to drive far with their little ones what did you do to ease the ride?