[Bruce gives him a knowing look in return for that wide smile. He sees your wheels turning, Harry. And he isn't opposed to helping out, though it depends entirely on what the projects actually are. And he will find out, don't even dream of trying to keep him in the dark about anything. See how well that worked out for Fury.]

It's not insomnia. Well...not entirely. It's been a problem since I was young, but now I suppose it's on a much bigger scale, no pun intended. And the context is vastly different.

[He glances up at the sky for a long moment. He's not used to talking about this, even with the other Avengers. It's something they know they all have in common, but they don't talk about it.]

I have frequent nightmares. After I...hulk out, I only remember what happens in fragments. A lot of noise and jumbled images in my mind, and none of it makes much sense. Imagine your brain trying to piece something like that together while you sleep. And when I've lost control, when I know I've hurt people...

[Technically he'd been under the scepter's influence during the Helicarrier incident, and then Wanda's. But he doesn't see it that way.]