My Student Spirit Book 2: Sleepless Paralysis

Sleep paralysis - an unpleasant state between sleep and wakefulness, when the brain has already woken up, but the body hasn't yet. Auditory and visual hallucinations, chest tightness, and total inability to control your body give rise to primal fear in those who experience the paralysis. The demons of sleep paralysis can come in different forms, but one thing unites them: they want something from you, and they won't leave until they get it.