What specific 3AM event woke you up:

1) Porter flight landing,
2) Porter flight taking off, or
3) Porter maintenance run.

I've noticed that curfew breaches are way down and am surprised at this 3AM event. In fact during one of my late shifts at Pearson a few weeks ago, we welcomed a Porter diversion at 12:15AM.

If there is no specific "noise" event and you are only speaking in a rhetorical sense than I apologize.

On another issue, I think you should be less critical of noise caused by flights on Medical priority (as explained to you by the TPA) as these can and will occur at all hours of the night. One day it may be someone you love being facilitated by the TCCA and a 3AM Medevac flight.

Certainly Toronto's "livability" does not suffer because of these important flights and I would argue the opposite - Toronto is a better city for having the infrastructure to accommodate such a vital service so close to some of the best hospitals in the world.

Take Care and try not to worry so much.
Stress is bad for you.

Joe