Hypnogogic hallucination

Hypnogogic hallucination

A hallucination, such as the sensation of falling, that occurs at the onset of sleep.
Mentioned in: Hallucinations
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Cocteau, devastated by the death of his lover and protege, the twenty-year-old poet Raymond Radiguet, was high on opium and in a state of hypnogogic hallucination, which he described as "a sleep that seemed interminable but turned out to have lasted half a second.
They are excessive daytime sleepiness, cataplexy (sudden loss of muscle tone, usually in relation to strong emotions), hypnogogic hallucinations (seeing things that aren't real, particularly upon going to sleep or waking up), and sleep paralysis.