The Sleeping Squidward meme, featuring the grumpy neighbor from SpongeBob SquarePants, is the ultimate template for expressing sudden realization or anxiety. The meme typically consists of two panels: one showing Squidward sleeping peacefully and the other showing him with his eyes wide open in shock. Originally appearing in the 1999 episode 'Home Sweet Pineapple,' the still image gained massive traction online as a way to illustrate those moments when a stressful thought suddenly hits you right as you're trying to rest. It is widely used to joke about forgotten assignments, social blunders, or general existential dread, making it a permanent fixture in internet culture.