Wakefulness refers to the state of being awake and is the behavioral manifestation of the metabolic state of catabolism. It is the daily recurring period in an organism's life during which consciousness, awareness and all behaviors necessary for survival, i.e., success in (Communication, ambulation, nutritional ingestion and procreation), are conducted. Being awake is the opposite of being asleep a behavioral manifestation of the daily recurring metabolic state of anabolism.