Definition of "electrosleep" []

• Unconsciousness brought about by the passage of a low voltage electric current through the brain (noun)

WordNet. Princeton University. 2010.

• "Remarkably, over 60 years ago (1949) scientists in the (then) Soviet Union began applying a very low voltage alternating current to stimulate the brain, CES or cranial electrical stimulation, which they called "electrosleep" to treat insomnia (cranial refers to the skull or cranium, where the electrical leads are placed and the scalp stimulated)."