The Mr. Sandman Cat meme features a ginger tabby named Ed rhythmically appearing in a nine-panel grid synchronized to the 1954 classic 'Mr. Sandman' by The Chordettes. Originally uploaded to TikTok by user @jadensprinz in August 2019, the video utilized a specialized camera filter to create a mesmerizing, kaleidoscopic dance effect that perfectly matched the song's beat. It quickly became a viral sensation across social media platforms, praised for its perfect timing and the cat's nonchalant expression. Today, the template is widely used to represent feelings of joy, perfect synchronization, or any situation where someone is caught in a repetitive, catchy loop.