Upon awakening from sleep, Zack cannot move; and as he struggles, he feels evil presences standing over him whispering to each other.Suddenly he hears screams from somewhere in his bedroom.Within moments, the evil presences disappear; and Zack is able to move again, realizing that the screaming was on the radio.Zack just experienced

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Quizplus · Accepted Answer

This sounds like an example of hypnopompic hallucinations, which are vivid hallucinations experienced upon awakening, usually during the transition from a sleep state to wakefulness. The feeling of being unable to move is also common in this state. The evil presences Zack feels could be interpreted as a type of hallucination, and the screaming from the radio is another common feature of hypnopompic hallucinations.

Upon Awakening from Sleep, Zack Cannot Move; and as He