The effects of time travel and the general coming of the apocalypse have turned Klaus into a light sleeper. So when Allison gasps and jerks to consciousness, he wakes, too. It takes a second for him to understand whats going on, all sleepy brained and sleepy eyed, but he reaches for her arm instinctively.

"Al?"

He pushes himself up and rubs his free hand over his eyes, back through his wild hair. "Hey, hey, hey," he finally mutters, reaching to curl his arms around her beneath the covers and pull her close to his chest.

"I got you. Just take some deep breaths. In and out, atta girl..."