Baby Boys SpongeBob Sleepsuit. Who lives in a pineapple under the sea? Sponge Bob Square Pants! This adorable baby grow is inspired by the iconic Nickelodeon TV show, Features a yellow long sleeve all in one with a print of Sponge Bobs face. Completes this is an easy popper fastening with cosy footies. Your little one will be dreaming of fun on Bikini bottom with Spongebob, Gary and the gang!