noun. The state or character of being wakeful; especially, indisposition or inability to sleep.

noun. The state of being wakeful.

noun. a temporary state in which you are unable (or unwilling) to sleep

noun. the process of paying close and continuous attention

noun. a periodic state during which you are conscious and aware of the world

"It was in one of those moments where the boundary between sleep and wakefulness is so blurred that you’re not sure whether you’re awake or dreaming – are you lucid while dreaming, or are you dreaming while awake?"

temporary state  

alertness  disorientation  dizziness  doze  drowsiness  

wake