Phobetor (also known as Ikelos or Phantasos) is one of the three sons of the Greek god of sleep, Hypnos. Phobetor is the personification of nightmares and is responsible for creating vivid and terrifying dreams. Along with his brothers, Phobetor and his brothers, Morpheus, and Phantasos, were known as the Oneiroi, the Greek gods of dreams.

Phobetor was said to have the ability to take any shape or form in a dream and often appeared as animals or monsters, such as the Erymanthian Boar, the Minotaur or even as a Gorgon. He was also known to be able to create vivid and terrifying nightmares that would leave people feeling scared and uneasy.

In some versions of the myth, Phobetor was also said to have the power to control the elements in a dream, such as creating storms or earthquakes.

Phobetor was also known to be able to interact with the dreamer, often appearing as a guide or even a tormentor. He was often depicted as a shadowy figure or as a creature with wings, representing the dark and shadowy aspect of dreams.