What is the average bed-time for a 12 year old with 6 younger siblings?

I would put them all to bed at the same time, that way the younger children wouldn't argue about how unfair it is that the 12 year old gets to stay up later, and also you wouldn't have to deal with so much pre-teen crankiness if he/she got more sleep. I'd say somewhere in between eight o'clock and nine thirty.

Hope that helped =] sorry if it didn't.