The character or state of being wide-awake or sharp.(noun)
The Century Dictionary (Public Domain)
Use "wide-awakeness" in a sentence
"A gradual, unnatural onset of wide-awakeness was taking hold, likely brought on by whatever had been in that injection."
"Trixie could only hear snatches, but what she heard jarred her into wide-awakeness."
"The two pairs of eyes looked into each other for a moment, singularly alike in a certain intent expression, developed into great keenness in the man, but showing as yet only an extreme wide-awakeness in the boy."