Sleeping Enemy, aka Sleeping Monster is s monster appearing in *Lucky Castle Ultimate*, a roguelike videogame. They are blue monsters with two blue horns, and two yellow eyes with black pupils. They are always sleeping on their chair, never leaving of place even when awake, why I have no idea but they just get there. Don't wake them up or they will eat you if you comes too close.
*You are in the tower, in one of the rooms you finds this sleeping monster on a chair, and lots of airhorns around him for some reason too...*
