Sleep deprivation

LIZZ: “That’s it, honey.” [SITTING UP, ROCKING IN BED]
ME: “What are you doing?”
LIZZ: “I just… I have to stay awake and…to make sure the baby doesn’t fall asleep on me.”
ME: “What? I didn’t even hear you get out of bed.”
LIZZ “Oh. My. God. I am losing my mind.”
ME: “What?!?”
LIZZ: “This isn’t even the baby. I’ve been rocking the cat.”