Remus had been sharing his bed with Sirius for days now... of course being back in Grimmauld Place was difficult for him. It would have been stupid for Remus to assume that the man could just walk back into his childhood home and not have any lasting effects.
He'd been having a pleasent sleep, after saying a goodnight to Sirius. Though, he figured that his sleep would be short lived. Sirius's nightmares had become a nightly occurence, and Remus had been doing the best he could to be there for his friend. Tonight, when they began, he reached sleepily across the bed, rolling over to face the other man.
"Shhhh..." was all he could manage in his sleepy state... he wanted to comfort the other man, but he wasn't sure what to do aside from letting him know that he was there for him. He felt the hand groping at the sheets, and grabbed the wandering hand, squeezing it tightly. "Shhhhh," he managed once again.