It's a well-known fact that Lan Wangji's golden core is strong. He'll live a long time, centuries, if not longer, and age very little. But it's the expression of pure peace on that face that has Wuxian lingering, just studying him for a long few minutes.

He hadn't expected his friend to wake up so quickly just for lack of him being right beside him, let alone to come after him. It has him hunching his shoulders a little, mid sip, and peering over at him with wide eyes.

...Right. Not awake, really. His shoulders relax and he shakes his head with another wry little smile before reaching out to grab one of Lan Zhan's wrists to lead him back to the bed. "Alright, alright...I'll stay and try to sleep more." Which is what he should do anyway, but he'd not wanted to just yet.

"Come on, Lan Zhan. Back in bed you go." He'll help him stretch back out before doing as promised and laying back down.