"Dean? Dean!" Cas held Dean down to keep him from hurting himself.

How many times has he done this, watched over him, kept the nightmares at bay, but suddenly Lucifer is back, and he is useless. He has to comfort Dean the way humans do, which took more time, and it was so frustrating to him.

Dean panted, opening his eyes to see he was still in the room, Cas hovering worriedly above him. "Cas?"

"I'm here, Dean. You're ok..." Cas said.

Dean's senses kicked again, just like every other night, and he focused on feeling the bed, feeling Cas' hand, his presence calming him.

"Cas? We're ok?" He asked, tears in his eyes.

"We're ok...Dean...what happened, if you don't mind me asking, in your dream?"

"I don't think it was a dream..." Dean blinked hard. "This was different...it felt like, I was looking at something happening in...I think I saw Hell..." They looked at each other worriedly. "And Lucifer was there."

"Are you sure?" Cas asked, trying to stay calm.

"Oh, yeah, and he's mad..." Dean shivered. Cas yanked the covers out of the bed and around Dean's shoulders. "He's mad at you for saving me."

"What?" Cas frowned, squeezing Dean's shoulder. "I killed every demon that stood in my way...there were no witnesses, I thought." He closed his eyes. "I'm so sorry, Dean...I've messed up again."

"Hey, we're not doing the pity party thing anymore, remember? Besides, we've got bigger problems to worry about. Lucifer on our asses can't be a good thing. What do we do?"

"We need help..." Cas fought the urge to fly off and find it quicker, but he would not risk leaving Dean alone. "I promise, I'm going to get you out of this, Dean." He combed some sweaty hair back off of Dean's brow with his fingers.

"And I'm going to do the same for you..." Dean promised back.

"Ok..." Cas got up to check the warding around the room. "Try to get some sleep."

"Uh, uh...no way..." Dean stood up, throwing the blanket off. "That's enough to keep me awake for a solid week."

"Dean, the human body cannot survive without sleep." Cas argued. "In less than eleven days-"

"Cut the crap, Cas!" Dean yelled. "I didn't sleep for forty fucking years in Hell! I can go one night..." He choked.

"I'm, sorry, Dean..." Cas looked hurt. "I wish I could understand what you're going through, but I can't. I can't feel anything...but that won't keep me from trying. I just don't want you to get hurt."

Dean held the tears back, but his eyes were welled up full. "Dammit!" He turned around, to keep Cas from seeing him cry like a baby. "What is wrong with me?" He whispered to himself.

"Nothing..." Cas gently pulled Dean's shoulder to turn him around. "Look at me. You said we were in this together, right? You're going to have to work with me, then." He led him back to the bed, and sat them down together. "Please?"

Dean buried his head into his hands, but Cas saw the tears fall through his fingers. He rubbed Dean's tense back muscles till they relaxed, and did not say another word.

Dean eventually lost the battle, crying himself to sleep. Cas never lifted his hand, praying for him to rest peacefully.