[u10242]

This setup really sounds great and very involved.

But how do you turn the lights off again? Timeout? Not detecting any motion? Also, do you have any pets?

As for dimming the lights, I'm sure it looks impressive and also dramatic. But I've been able to go to bed in time for more than 40 years just fine. Also, what if you do want to stay up later?

Which, I think, is the gist of the first comment: You can do all these things, but they don't improve the current status and thus mostly serve as recreational activity.

[thinkloop]

Turning off the lights is a big problem. You need to introduce presence detection, which is more than motion - people are very still when watching a movie or reading a book or working at their desk. That's when you have to introduce phone detection or heat detection or other sensors that need to be processed and integrated exploding the complexity.