Inns are buildings in Cube World.
Inns are located in every city. You can sleep in an inn by talking to the innkeeper between 18:00 (6:00 pm) to 6:00 (6:00 am). Sleeping in an inn costs 10 coins and will skip the night, setting the time to 7:00 and resetting the locations of daily missions.
Inns also contain beds which allow you to rapidly regenerate health and can be used at any time.