He probably will, too. He's spent so long hovering around Klaus and mirroring him (because he had no choice as a ghost), that it's almost like habit. Ben takes the mug of tea with him, though, because he's not giving up any drinks or food now that he can enjoy them instead of staring wistfully at them.

And maybe that's just why he can't sleep in general? Sleep's not a ghost thing. It's a human thing, and he's just not used to that.

"I kind of miss you," he admits, "I know you're right there down the hall, but it's not the same," he complains, and if anyone will understand that, it's going to be Klaus.