We also have a very active, not so sleepy girl
Although I have to say that she's actually been sleeping more at night the last few months--sometimes 12 or 13 hours (of course, that's because she now only takes a nap a couple times a week if we're lucky), so maybe some of your LO's will grow into that as well--we used to be awake between 5 and 6 pretty much every day, but now get up around 7/7:30 most days.
I agree that it is totally exhausting to just not get a break--so many days I'm counting down until we can get her into bed just so I won't have to listen to the constant talking--even during "nap" time, I can't get her to be quiet--she stays in her room, which I'm grateful for, but she's singing at the top of her lungs most of the time and our house isn't all that big so there's not place to escape her!
But at the same time, I do love her energy!
~Kim