EXAMPLES FROM THE WEB FOR HYPNAGOGIC
On the contrary, hypnagogic illusion is, with me, a decided phenomenon.
The first is hypnagogic hallucination, the second coloured audition.
And there are crystal-seers who are not subject to hypnagogic illusions.
These ‘hypnagogic illusions’ Pontus de Tyard described in a pretty sonnet, more than three hundred years ago.
For bad visualisers, on the other hand, the vividness of these hypnagogic pictures may be absolutely a revelation.
The experience of hypnagogic illusions also seems far more rare than ordinary dreaming in sleep.
In these respects, and in the awakeness of the scryer, crystal pictures differ from hypnagogic illusions.
WORD ORIGIN
1868, from French hypnagogique, from Greek hypnos "sleep" (see somnolence) + agogos "leading" (see act). Etymologically, "inducing sleep," but used mostly with a sense "pertaining to the state of consciousness when falling asleep."