It's good to keep your bird's main-cage in whatever room of your house you and the other people in your house spend their time when they are home, as simply being around people as much as possible will help to socialize and tame them. Usually this is the living room, family room, den, TV, etc., and usually this means that things like the TV, the stereo, video games, talking, etc. will be on past the bird's bedtime. This is fine, they will in-fact sleep right through the noise (as long as it's not blaringly loud), but you do need to cover their cage at bedtime with a sheet or a blanket. That will help them sleep and ignore the noise, lights, etc.