He's saying things again, but it's hard to focus. She catches a couple words, paramedics and awake. Staying awake sounds like a terrible idea right now, with more pain creeping past the shock into her awareness. If she's asleep, she can ignore it. Still, he asked, so she's willing to at least try to keep her eyes open.

She mumbles out "tired", though. So he doesn't worry if she just takes a nap. She's just sleepy.