Nixy can be quite venomous at times. Especially when punctuated with congeniality.
Timby is no doubt familiar with this though, and when he masterminds sabotage he makes sure to prepare for the worst. What was it that provoked Timby to initiate this assailment of Nixy's habits of repose, you might ask? A fine question indeed, and to find the answer to which you would have to consult the barber across the street.
As for it being Nixy's bedtime, who knows in what timezone he means. Our sources indicate he singled out those business interactions which were by nature local, and he does the rest over the internet in either Bangladesh or Prague. Or both.
Thus he effects a nocturnal lifestyle. Allegedly.
"Nixy's Room" "Quiet Please" "Do not disturb" RAT-TAT-TAT-TAT