Songfacts®:

• Even the Prince of Darkness needs to slow it down sometimes, and in this ballad, Ozzy finds himself tired of waiting around for his girl, as it dawns on him that she is probably cheating.
  
  A minor hit in the UK, it was one of the first successful ballads Osbourne released, prompting him to mix in more slow songs with his rockers on future albums, letting his sensitive side come forth on songs like "Mama, I'm Coming Home" and "Road To Nowhere."
• Ozzy was backed up by a string section on this track that was arranged by Louis Clark, famous for his work with Electric Light Orchestra.
• Like all songs on the Bark at the Moon album, Osbourne is listed as the sole songwriter on "So Tired," but he got significant help with the writing from his guitarist Jake E. Lee and bass player Bob Daisley. In his Songfacts interview, Daisley explained that because of conflicts with publishing companies, he and Lee agreed to forgo credits and royalties in exchange for flat payments.
• In the video, Ozzy plays all the main characters, like Eddie Murphy in The Nutty Professor.
• A piece of glass lodged in Ozzy's throat when he was doing a scene for the video where a mirror breaks. He had to postpone some shows, but did fully recover.