wakefulness

n.

不眠；失眠；觉醒；警觉

1. At the same time,our senses remain responsive enough so that extreme external stimuli can rouse us to wakefulness.
   同时，我们的感官能力，所以外界极其强烈的刺激能将我们唤醒进入觉醒状态。
2. Consciousness during wakefulness in a sane person is pretty well ordered and familiar.
   神志健全人在觉醒状态期间的意识十分有条理和正常。
3. Protein in meals stimulates wakefulness, while carbohydrates promote sleep.
   食物中的蛋白质使人不眠，而碳水化合物却使人易于入睡。
4. Such as havinguncontinuous dream,being waked up by nightware suddenly,tossing sleepless even being wakefulness over the whole night and so on.
   做不连贯的梦，在噩梦中惊醒，辗转不眠甚至彻夜不眠等等。

The cumulative cost of additional wakefulness: ...
The sleep switch: hypothalamic control of sleep and wakefulness
The neural circuit of orexin (hypocretin): maintaining sleep and wakefulness.
Paradoxical timing of the circadian rhythm of sleep propensity serves to consolidate sleep and wakefulness in humans
Adenosine: a mediator of the sleep-inducing effects of prolonged wakefulness.
TO EAT OR TO SLEEP? OREXIN IN THE REGULATION OF FEEDING AND WAKEFULNESS
Sleeping and Dreaming. (Book Reviews: Thalamic Oscillations and Signaling.; Brainstem Control of Wakefulness and Sleep.)
Dopaminergic Role in Stimulant-Induced Wakefulness
Neurophysiology and Neurochemistry of Sleep and Wakefulness
Unresponsive wakefulness syndrome: a new name for the vegetative state or apallic syndrome