"'S okay. I wasn't asleep." The thing about sleeping is that it comes with dreams, and dreams can easily be bad ones. Frisk's tend to go that way half the time, and they'd rather not fall to the ground because they thought they were dodging a set of teeth bigger than they are.

"I'm Frisk." They tilt their head, looking at him a little more closely. "You look like Kotetsu. But you're not, you're new. Newer. Right?"