What It Means When You Imagine Things, Well, ‘Happening’ To You As You’re About To Fall Asleep

A hypnagogic hallucination is a benign visual, auditory, or tactile hallucination that occurs in the state between wakefulness and sleep.

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<a href="http://www.stocksy.com" target="_blank" rel="noopener">Stocksy</a>/Sergey Filimonov