Quote Originally Posted by rtpsoulx View Post
You unlock it after the story Ifrit fight i believe, the inn rooms are located at the adventurer guilds in all the city-states.
Nah, it's like around level 10 or so, really early. It's one of the first things (the other being leves) i try to unlock on alt characters, so if i can't play my main, i have a ton of rested and leves stored up.