A/N: Finally! I'm not sure this is as good as the other ones, but it's fluff and it's cute and it's all I could come up with.
The Doctor was awakened by a scream and a loud flump.
"Rose!" he said, and jumped up. "Rose!" he repeated, louder, more like a shout. "Are you alright?"
He burst into her room to see her sitting on the floor, tangled up in the blankets, staring up at him. "Fine," she said, her voice higher than normal. "I'm fine. Just fell out of bed, that's all."
"Right," he said. "Get some more sleep, then."
He returned to his room. Five minutes later, he was nearly asleep when the door opened. "Doctor? Are you awake?"
He turned over. "Yes, Rose, I'm awake." It didn't matter that he'd been about to go back to that wonderful dream he'd been having.
"Can I come in here?" She was standing in the door, biting her lip, afraid to intrude.
"'Course you can," he said cheerfully. "Come on, then, don't just stand there. If you're going to come in, come in!"
She stepped inside, looked around, curious. She'd never been in here before. Her eyes flicked to the cluttered desk, the Converse shoes on the chair, the mess of disassembled gadgetry on the table. "All stuff you've been fixing, yeah?" she asked, a hint of a tease in her voice. She didn't think much of what he fixed was actually any better, especially the things that hadn't been broken to begin with.
"Yep," he said brightly. "Fixing." His smile could have lit the TARDIS up. "Oh, come on, there isn't any laser security going to zap you into nonexistence when you take three steps in the door."
"Nothing going to transmat me to any evil robot colonies, either?" she said, grinning. She came a few more steps and stood there, looking around awkwardly.
"Nope. What's wrong, Rose?" His brown eyes were full of concern. He knew something was wrong, but what was it?
"Just—couldn't sleep," she mumbled, looking away.
Before she even saw him move, he was next to her. "Bad dreams?" he asked softly.
She nodded, chewing on her lower lip. "I—I thought I'd lost you," she whispered after a pause. "I thought I'd never see you again..."
He put his arm over her shoulders. "It's alright, Rose. C'mere, you." He pulled her over to the bed. "You want to sleep in here tonight?" She nodded. "Alright then. How d'you want to arrange this?"
She shrugged, a slight smile playing at the corner of her lips. "It's chilly in the TARDIS."
"I can ask her to turn the heat up, if you like."
"No, I'm fine. But—oh, never mind. I'll sound stupid."
"Tell me!"
She scuffed her foot on the floor, smiling. "Feel nice, with your arm 'round my shoulders like that."
He grinned. "You want me to keep it like that?"
She grinned back, her eyes gleaming. "Yeah, that sounds good."
"Sweet dreams, Rose," he whispered in her ear as he pulled her into an embrace. She nodded, and fell asleep in his arms. Nightmares didn't trouble her again that night.