A sleepwalking sister! Space dreams and scientific surveys! A sudden surge of songwriting inspiration! Slippery, silent worm hunting and the stealthy seeking of a warm bath! The search for a sticky ghost! There is no such thing as sweet slumber in the Loud House. Witness what kind of antics the Loud kids - Lori, Leni, Luna, Luan, Lynn, Lucy, Lola, Lana, Lisa, Lily, and Lincoln (plus best friend Clyde) can get up to in the wee hours! One thing's for sure, it's going to be a long, long night!