The Hey You Going to Sleep? meme, also known as the Brain Lullaby, originated from a 2017 comic by artist J.L. Westover for his series Mr. Lovenstein. The four-panel comic depicts a character trying to fall asleep, only to be interrupted by their anthropomorphic brain asking a thought-provoking or distressing question. This causes the character's eyes to snap wide open in a state of sudden wakefulness. It became a viral sensation as a way for internet users to represent intrusive thoughts, social anxieties, and existential crises that prevent rest. Its relatable nature and simple format have made it a staple for expressing those moments when your mind refuses to shut down at night.