Feeling simultaneously tired and alert; the state of being caught in limbo between tired and awake.
Often phrased as "trapped in dormerigo" or "in a state of dormerigo."
Josie-Ann-Louise: I was caught up in a cloud of dormerigo; so, I spent the whole night making up words with my friend on Skype.
Richard: I was trapped in dormerigo last night. It wasn't any fun: I couldn't get to sleep because I was too alert, but I was also too tired to concentrate on anything.