NightFood Holdings, Inc. announced that Dr. Michael Grandner, a leading sleep researcher, and Director of the Sleep and Health research Program at the University of Arizona, has joined the company in an advisory role. Over the past several years, Dr. Grandner has conducted a number of studies on the links between nutrition and sleep and has become recognized as a leading expert in this area. His work has led to appearances on ABC World News Tonight, NBC News, and The Dr. Oz Show.