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A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.
Individuals with exploding head syndrome hear or experience loud imagined noises as they are falling asleep or are waking up, have a strong, often frightened emotional reaction to the sound, and do not report significant pain; around 10% of people also experience visual disturbances like perceiving visual static, lightning, or flashes of light.
The word hypnagogia is sometimes used in a restricted sense to refer to the onset of sleep, and contrasted with hypnopompia, Frederic Myers's term for waking up. [2] However, hypnagogia is also regularly employed in a more general sense that covers both falling asleep and waking up.
To sum up what both sleep docs have shared so far, waking up during the night is completely normal and not typically something to worry about. But both doctors say that if you can’t fall back ...
After all, waking up in the middle of your sleep, and then struggling to fall back asleep makes you tired and cranky the next day. And sometimes, ...
Want to stop waking up so early — or trying to shake your night owl habits? Experts offer tips for adjusting your sleep schedule. (Getty Images) (DuKai photographer via Getty Images)
Recurrent isolated sleep paralysis is an inability to perform voluntary movements at sleep onset, or upon waking from sleep. [22] Although the affected individual is conscious and recall is present, the person is not able to speak or move. However, respiration remains unimpaired. [22] The episodes last seconds to minutes and diminish ...
Pay attention to whether any of these are waking you up at night, and make adjustments accordingly. For example, if you always wake up because the sun peeks in at 5 a.m., hang up blackout curtains.