The inaugural edition of Nocturnal Wonderland was held in 1995 in Downtown Los Angeles. Not only is Nocturnal the oldest festival in the Insomniac portfolio, but it also holds the title of longest-running electronic music festival in the United States.
Nocturnal Wonderland has evolved into a two-day camping event featuring four stages with a variety of music genres and various attractions, including interactive art installations, neon-clad performers, and camping activities. As one of the only camping festivals in Southern California, Nocturnal is differentiated by the permeation of old school rave culture throughout the community. Oneness and PLUR are central principles of Nocturnal Wonderland, and as one of the only Insomniac festivals with no VIP tier, everyone is equally invited to share in the unique experience and sense of family the festival has to offer. Nocturnal Wonderland's most recent home is at Glen Helen Regional Park in San Bernardino, but the festival has seen 10 different venues and 3 editions in Texas during its tenure, as well as a virtual edition in 2020.