Everything's gotta sleep eventually. (Even bugs.) But there are all sorts of bugs that come out at night, too.

(Is he teasing? Absolutely. But he's also being honest. Who knows what else is out here! It's the whole reason they have these watches set up.)

Well, if you're here to help I won't say no. (And he leans agains the base of the tree, arms crossed and with a smirk,) Are you coming up, master?