Sora had BETTER not fall asleep. Riku didn't WANT to be up this early any more than Sora wanted to be up.
Riku followed Sora's glance and huffed a little. Jealous. "You'd think they were actually friends," he commented, turning his gaze back to the road. Only friends got to sleep like that. He'd LOVE to be able to sleep in the back like that right now. With Sora.