Examples from the Web for hypnagogic
Nighttime “visitations” may be chalked up to sleep deprivation, to hypnagogic or hypnopompic hallucinations.
These ‘hypnagogic illusions’ Pontus de Tyard described in a pretty sonnet, more than three hundred years ago.
And there are crystal-seers who are not subject to hypnagogic illusions.
On the contrary, hypnagogic illusion is, with me, a decided phenomenon.Metapsychical Phenomena|J. Maxwell
For bad visualisers, on the other hand, the vividness of these hypnagogic pictures may be absolutely a revelation.Human Personality and its Survival of Bodily Death|Frederick W. H. Myers
The experience of hypnagogic illusions also seems far more rare than ordinary dreaming in sleep.
British Dictionary definitions for hypnagogic
Word Origin for hypnagogic
Word Origin and History for hypnagogic
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."