When Goodman calls Chris Watts [several times] at around 02:00 in the morning, Watts is there, and initially it sounds like he’s talking to someone else in the background.
We know at around this time Watts and Kessinger were talking, and possibly communicating on FaceTime during Goodman’s call.
When Watts calls Goodman back it doesn’t sound like he’s been sleeping, or that he’d just woken up. He’s also very matter-of-fact as he runs through the weight, height etc of his three murder victims. He’s sufficiently awake to know these numbers off the top of his head.
Goodman notes the following in his report [Discovery Documents page 67]:
It should be mentioned that once I had made contact with Christopher, he did not ask me if I had been calling because I had any information concerning his missing wife and daughters, or if I was calling because they had been found.