Well, if the expert says so. [Papyrus rolls his eyes, not at all doubting the claim of expertise, but critical that this is something to be an expert in.

He stretches his arms over his head and stands up, then considers Sans on the couch with a raised eyebrow.]

You're really sleeping here? Was my champagne too powerful...? [He doesn't mind, there's something comforting about Sans being in the same roof again, especially when time is being weird... again.] Won't Lorna wonder where you are?