light sleep


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Related to light sleep: Light Sleeper, deep sleep

dys·nys·tax·is

(dis'nis-tak'sis),
A condition of half sleep.
Synonym(s): light sleep
[dys- + G. nystaxis, drowsiness]

dys·nys·tax·is

(dis'nis-tak'sis)
A condition of half sleep.
Synonym(s): light sleep.
[dys- + G. nystaxis, drowsiness]

light sleep

A colloquial term for the first stage of non–rapid eye movement (NREM) sleep. It is sometimes also applied to the second stage of NREM sleep.
See also: sleep
References in periodicals archive ?
In the "sleep stage model" minutes spent in light sleep, deep sleep and REM sleep (all from the WS) were respectively included in the same model.
After two stages of light sleep in which the body is drifting and transitioning into dormancy, deep sleep arrives.
Experiment: Measure how well an orangutan performs on memory tests after a night of deep sleep and after a night of light sleep. Then compare the two results.
In healthy subjects, these two processes involved in determining spindle features seem to correlate because, in general, spindles are abundant and fast in light sleep and few and slow in deep sleep [9, 33].
On the other hand, no difference was observed in sleep onset, deep sleep, light sleep, wake/dream time, and AHI in control group.
The value of [FR.sub.[theta]] showed that [theta] rhythm is more active in the light sleep states and rapid eye movement, while [FR.sub.[beta]] is in the awake stage.
Caption: Figure 3: (a) Mean (n = 8) power density spectra (geometric mean) and (b) event ratios of REM sleep (REMS), light sleep (LightS, NREM sleep stages 1 and 2), and slow-wave sleep (SWS, NREM sleep stages 3 and 4) recorded longitudinally at 2 (blue), 3 (red), and 5 years (orange) of age.
Keep it on continually while baby is asleep, so when they come into a light sleep phase it soothes them back to sleep.
You can wake up to sounds or tunes of your choosing, but more importantly, Sleep Cycle measures the quality of sleep you are getting, and can wake you gently when the app determines you are in your ideal light sleep phase.
The App "Gentle Wakeup" turns an Android device into a wake up light and shifts the light sleep phase exactly to the desired wake up time.
Stage two is light sleep with no eye movement, while heart rate and body temperature decrease.