This is going to be very unpopular, but my CAG goes to bed whenever I do. Her cage is in the living room. I tend to go to bed around 9:30-10 p.m. most nights. It's just me and one roommate, so the house is pretty quiet after that.
I do the same with my budgie (he sleeps in my room). It's just him for nearly a year, since we lost his mate, so now I'm his flock and he likes to sleep at the same time as me. When I'm about to go to bed, I dim the lights and close his cage door while I go to get ready for bed. If I'm not back within about 3 minutes he starts climbing around the cage door trying to get out, the little nut.
My sister used to put her budgies to bed around dusk, but my guy wants to be up if he knows I'm up. In fact, even after I cover his cage and turn out the last light... He won't climb up to his sleep perch until he hears me lay down in bed. It's so cute.
Also, he'll be quiet in the morning until I uncover him. If I am later than usual uncovering him, he might make a few sounds, but he uses his "whisper" voice. I don't know if this is normal, or if I just have the most considerate budgies ever (my female did the same thing)!
M&M almost never venture away from the cage area when they are flying. Never have they landed on any surface that was not attached to the cage. I guess they just feel most comfortable that way.
That's so funny! Wuggie seems to know which stuff is his, and he doesn't land on anything else either! (Unless he gets startled pretty badly, then he might land on the curtains, or in my closet on top of my dollhouse). It's quite handy, because for the most part I don't have to worry about poop on random stuff, or worry about not being able to find him. I can't relate to stories of birds getting into everything and chewing on everything!