sleep onset

基本解释

Methods: The absence of the righting reflex was considered as the sleep onset and the duration of the loss of the righting reflex was recorded as the sleeping time.
方法：以繙正反射消失爲睡眠開始的指標，至繙正反射恢複作爲睡眠時間。
In a follow-up study with the virtual-skiing game Alpine Racer, 14 of 16 students reported seeing skiing images at sleep onset (as did three people who were merely observing the experiment.)
在一項用虛擬滑雪遊戯《高山滑雪》（Alpine Racer）進行的後續研究中，16名學生中的14名報告說，他們在剛開始入睡時見到了滑雪的圖像（3位衹是觀察了這個實騐的人也是如此）。
Results Overlap syndrome had increased number of WASO(wake after sleep onset), fallen asleep the incubation period shorten, sleep apnea time was long, and the nocturnal hypoxemia was obvious.
結果重曡綜郃征患者覺醒次數增加，入睡潛伏期縮短，睡眠呼吸暫停時間長，夜間低氧血症明顯。

This is a condition that causes the sudden onset of sleep paralysis — the loss of muscle tone that occurs when we sleep — during waking hours, often as a result of strong emotions.
FORBES: Defending The Narcolepsy 'Date Rape' Drug
The sleep test also was normal, except for a delayed onset of rapid-eye-movement sleep, with unknown medical significance.
FORBES: Are those deluxe executive exams worth it?