It wasn't that Zak minded having to get up in the middle of the night to take care of his son. It was the getting up in the middle of the night that Zak minded.
After Wadi had angrily informed him that it was "his turn" to check on the baby, Zak had had to drag himself out of bed and down the hall in his pajamas to see what could possibly be wrong this time. Half an hour later, here he was and Solomon was still wailing. Zak was at the end of his rope. He'd tried everything he could think of and nothing had worked.
As a last resort, Zak started to pace the room with Solomon in his arms. It was like a miracle. Solomon stopped crying and was soon asleep, leaning against his father's chest. Zak took him back to his crib.
"Night, Solomon," he whispered, giving the little boy a gentle kiss on the top of his head. "Love you kiddo."