The Night Dimension is the dimension in which dreams and nightmares take place, as well as where most of the events take place in the NiGHTS games. It is the home of Nightmarens of the Nightmare, the Nightopians of Nightopia, the Awakers and Owl.

When a person has a dream or a nightmare they become a Visitor in the Night Dimension.

All the residents of the Night Dimension (including Owl and Reala) are genderless.

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