Sherlock thought about it for a moment." John, I want to test a theory, and I need your... cooperation." He struggled into a sitting position. He took a deep breath. "I want to sleep with you. In your bed, of course, I still can't stand my room. I want to see if that puts a stop to my nightmares." He looked around. "It'll be a bit difficult to get up there, but I do believe it will help a bit. If you wouldn't mind. If it bothers you than I can come back down here." He looked over at John with a bit of a pleading gleam in his eyes. "Please, John. It's been mostly proved that the presence of another person when sleeping assists in resting better, most likely because it's twice as likely that one will sense danger. I just... it would help me."