Inn System? what is this?

Can some explain what this is? xD

It's kind of hard for me to explain. I'll copy and paste WoW's explanation.




WoW does it like this, taken directly from their site:

 Spoiler

The Rest State modifier gives players a time-limited bonus to combat (PvE) experience. Rest State is gradually earned while you are logged out of the game, or when your character is located in a city or inn.

Rest State

While in rest state, players earn 100% bonus experience points. The Rest state modifier only affects experience earned from killing monsters. It does not affect experience earned from quest rewards or other experience rewards in the game.

When a player rests in a city or at an inn they will gain rest bonus at a very slow rate, but four times faster than players who log out outside of cities or inns. Eight hours of rest will confer one "bubble" of rest bonus. At any given time, players will be able to accumulate a maximum of 30 "bubbles" worth of rest bonus which translates into approximately 1.5 levels worth of rested play (before your character returns to normal rest state).

Note that while your character is resting, you can play other characters on your account. Each character has their own Rest State.

There is no penalty for leaving an Inn early. You are constantly accumulating bonus experience while in an Inn or City.

When you change Rest States within your current level, a special divider will appear on your experience bar, and the bar itself will change colors. You can also check your Rest State by moving your cursor over the experience bar. A tooltip will pop up showing you your current rest state.

And here's a picture:

Now apply it to Maple, and there you have it. Rested EXP.