He doesn't like the way the sure sounds at all, but he's too afraid to start any sort of conversation with the potential to explode with Rey so peaceful in his arms.

Instead he sighs at her suggestion. It really is a bad habit, but Rey's been so exhausting this evening and he doesn't want wailing round two. He can lay with her, for a bit. The crib isn't far, he can tuck her once he knows for sure she's really down and out. Jyn pulls her hand away, and he already misses that simple connection, but he does take a few tentative steps towards the bed. "For a little while won't hurt."

Rey remains asleep, so Cassian carefully settles himself onto bed leaning up against the pillows with Rey on his chest. She just makes little wheezing noises and buries her nose in his shirt, but doesn't startle from the movements.