sleep-related hallucinations

Sleep-related hallucinations (or sleep hallucinations) are seeing, hearing, feeling, or smelling something that isn’t actually there while you’re falling asleep or waking up.

Doctors may call these:

  • Hypnagogic hallucinations (when you’re falling asleep)
  • Hypnopompic hallucinations (when you’re waking up)
sleep hallucinations, hypnagogic hallucinations, hypnopompic hallucinations
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