The Sleepers Awaken is the 35th episode of He-Man and the Masters of the Universe. After two hundred years, the evil Lord Tyrin and Lady Valtira awaken from their mystical slumber, on the same evening that Prince Adam and Teela venture too close to their ancient castle.
Orko tells viewers to avoid heavy eating or exercise before sleep, which should be at the same time each day.
- John Erwin as He-Man/Prince Adam
- Linda Gary as Teela and Lady Valtira
- George DiCenzo as Lord Tyrin (uncredited)
- The character design for Sago was reused as Batty in One for All.
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