M.R.
He's clearly having a difficult time falling asleep. There are few common sense ideas: he's not tired, he's bored, he's lonely, he's hungry, he knows you're all up out there, etc.
Like the other moms, 7pm sounds way to early. I don't know how families even manage such an early bedtime like that. I've heard it reported here before, but our family is not done eating dinner and cleaning up and taking baths, etc that early.
Let him stay up longer and see if he'll retire more permanently.