
1) Insomnia 2) Sleeplessness 3) Vigil
Found on
https://www.crosswordclues.com/clue/wakefulness

1) Physiological condition 2) Physiological state 3) Waking
Found on
https://www.crosswordclues.com/clue/wakefulness

Wakefulness is a daily recurring brain state and state of consciousness in which an individual is conscious and engages in coherent cognitive and behavior responses to the external world such as communication, ambulation, eating, and sex. Being awake is the opposite of the state of being asleep in which most external inputs to the brain are exclud...
Found on
http://en.wikipedia.org/wiki/Wakefulness

(from the article `sleep`) How much sleep does a person need? While the physiological bases of the need for sleep remain conjectural, rendering definitive answers to this ... ...sleep is one of `brain repair` or restitution, a period, for example, of increased cerebral protein synthesis or of `reprogramming` the brai...
Found on
http://www.britannica.com/eb/a-z/w/3

A state in which the individual is fully aware of his environment. ... (12 Dec 1998) ...
Found on
http://www.encyclo.co.uk/local/20973

[
n] - a temporary state in which you are unable (or unwilling) to sleep 2. [n] - a periodic state during which you are conscious and aware of the world
Found on
http://www.webdictionary.co.uk/definition.php?query=wakefulness
noun a periodic state during which you are conscious and aware of the world; `consciousness during wakefulness in a sane person is pretty well ordered and familiar`
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.