Insomniac is SCAD Radio's personal night owl, hosting shows no earlier than 10pm every week. During his show, he loves to tell stories and give shout-outs to any of the wonderful people he has met since arriving on this planet.
It is unknown whether or not he ever "sleeps", at least in any way that a human mind can comprehend. It's possible that he simply sustains himself through the energy gained from eating a bacon-egg-and-cheese biscuit every morning.