Sir Cecil the Sea Sleep King is the vision of a magical light olive green octopus who originates in the book, The Land of Perpetual Excitement. He helps SpongeBob go to sleep. He only appears in the episode "InSPONGEiac."


He is a light olive green magical octopus with a light gray beard, and a thin mustache, and a lime green caudal fin. 


In the episode "InSPONGEiac," he is mentioned in the bedtime story Patrick is telling SpongeBob, to help SpongeBob sleep. Sir Cecil appears during the bedtime story and sprinkles SpongeBob with "sleepy dust."


Cephalopods (VE)

Octopus childrenOctopus sailorOrvilleMrs. TentaclesMr. TentaclesSquidetteSquidward TentaclesSquilliam FancysonSquidly TentaclesSquogRogerLodge leaderSquidward's ex- cousinGrandma TentaclesKelpy GSquid massage therapistGerhard FishtrapHedvig FishtrapOctopus vendorDoctor NegativeSir CecilAmmoniteLab SquidwardUnnamed octopusSquidmundNew SquidwardSmellySquid the HorseSquilvia