Sleeping+Stage+N1

N1 is the first and lightest of sleep. It is sometimes called “somnolence” or “drowsy sleep.” It is the transition between Alpha waves (8-13 Hz, being awake) to Theta waves (4-7Hz, stage N1). During this phase, most people lose muscle tone and conscious awareness. Often when people are waken during this stage they think they never fell asleep and feel alert and awake. During the transition into this stage some people can experience hypnic jerks. Also, the person may have hypnagogic hallucintions, which can be frightening and feel real. At this point a sleeping persons thinking is still logical. If someone wakes up while dreaming during this stage they can be greatly confused. (It's happened to me!)

Hypnagogia is the term named by Alfred Maury that means the transition period between awake and asleep. The transition may be accompinied by a series of sensory experiences. With sight you sometimes see geometrical patterns, lines, speckles, pictures representing moving through a tunnel of light, and sometimes 3-D objects. If you repetitively do an activity before bed, than when you fall sleep you are more likely to see are more likely to see pictures of it, this is called the Tetris effect. People can also hear anything from imagined speech to random noises at levels of a whisper to a rock concert (known as exploding head syndrome). Humming, roaring, hissing, rushing and buzzing noises are frequent with sleep paaralysis.

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 * Table of Contents: **
 * = REM ||= Stage N1 ||= Stage N2 ||= Stage N3 ||
 * = Sleeping Habits ||= Sleeping Disorders ||= Bibliography ||=  ||