Mummy (The Rings of Akhaten)
From Tardis Wiki, the free Doctor Who reference
The Mummy was an alien of an unknown species that had rested in the Pyramid of the Rings of Akhaten for several millennia. Akhaten served as its "alarm clock" and forced it to wake up when it was time for the Queen of Years to be sacrificed. (TV: The Rings of Akhaten)