Relating to the state immediately before falling asleep.
- ‘I wasn't sure whether or not I was suffering from a hypnagogic hallucination!’
- ‘He automatically shook it off in his hypnagogic state and quickly fell asleep.’
- ‘Sleep paralysis occurs in the hypnagogic state or the hypnopompic state.’
- ‘These patients also reported and described hypnagogic images upon falling asleep.’
- ‘Acquaint yourself with the nature of hypnagogic and hypnopompic phenomena, as well.’
Late 19th century: from French hypnagogique, from Greek hupnos sleep + agōgos leading (from agein to lead).