Sandman Theory (Nathaniel Blue) is a DJ/Producer from Seattle, Washington, who crafts many forms of electronic music at his studio, the Fuzzy Lounge.

Sandman Theory has released electronica and melodic dance music on Televisionary Records, Fuzion Four Records and Fuzzy Lounge Sounds.

The Fuzzy Lounge Series is his downtempo / trip-hop side project.

Sandman Theory has opened for many of the best DJs in the world including Armin van Buuren , Marsh , and The Crystal Method.