hypnic jerk

Noun

Meaning

hypnic jerk (plural hypnic jerks)

An involuntary twitch which occurs just as a person is beginning to fall asleep, often causing momentary wakefulness.

Source: en.wiktionary.org

Synonyms

hypnagogic jerk sleep twitch night start sleep start

Close letter words and terms

hypnalgia hypnalis hypnic hypno- hypnoanalysis hypnoanalyst