What is Anna's Hair Type? Straight, Wavy, or Curly?

When you first wake up in the morning, the state of your hair will usually show your hair type. So in the scene before For The First Time In Forever where she wakes up (the "corneration" scene) her hair is tangled and curly, so curly I guess.

Well you don't really know because she doesn't let her hair down.

Wavy especially in frozen 2