hypno-, hypn-

(Greek: sleep)

The process of inducing or entering sleep or a hypnotic state.
A woman is just falling asleep after reading in her book.
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hypnogenic (adjective)
Descriptive of producing hypnosis or sleep: One form of a hypnogenic process is a spot that, upon being touched by a person, puts him/her to sleep.
Arising from a state of hypnosis, such as unconscious material uncovered during the course of hypnoanalysis.
hypnogogic startle (s) (noun), hypnogogic startles (pl)
At the beginning of sleep, a sudden body jerk or jerks that result in at least temporary awakening.
Resembling a state of hypnosis or sleep.
A reference to a condition between sleep and waking; resembling sleep.
The induction of hypnosis.
A chronic ailment that consists of recurrent attacks of drowsiness and sleep during daytime; narcolepsy.

The patient is unable to control these spells of sleep but is easily awakened. These attacks may be distinguished from ordinary drowsiness following a meal by the frequency of the occurrence of such attacks, their irresistibility, and their happening in unusual circumstances; such as, while eating, standing, or conversing.

A specialist in the phenomena of sleep and/or hypnosis.
The science or study of or that part of physiological science that deals with the phenomena of sleep and hypnosis.
A mania or excessive desire for sleeping.
Difficulty in going to sleep; insomnia.
hypnonarcoanalysis (s) (noun), hypnonarcoanalyses (pl)
A psychiatric activity combining hypnosis with a drug-induced sedation.
hypnonarcosis (s) (noun), hypnonarcoses (pl)
A combination of hypnosis and narcosis.
hypnopathy (s) (noun), hypnopathies (pl)
Any sleeping disorder caused by an illness: Lance was suffering from unrefreshing sleep, and thought that he must have a case of hypnopathy and went to see his doctor about finding out the reason for this unhealthy mode of sleeping.
Also see the mesmerism page for additional enlightenment.

Related "sleep" units: dorm-; letho-; narco-; oneiro- (dream); somni-; sopor-.