And while the cause of most of these sleep remnants is fairly obvious, the reason behind those sometimes-sticky, sometimes-crusty gobs of crud that can dot the lashes or cling to the corners of the eye is less clear.
Santa's Little Helper's initial appearance on The Simpsons was in the first episode of the series, Simpsons Roasting on an Open Fire, which aired on Dec. 17, 1989. Since then, he has become a recurring character.
Santa's Little Helper has become a well-known dog because of his appearances in the series. A writer for The Grand Rapids Press wrote in 2002 that we all know who Homer, Marge, Bart, Lisa and Maggie areâheck, most Americans probably recognize their pets, Santa's Little Helper and Snowball II .