This marks the second time Catboy and Owlette fall asleep during a mission, only this time as themselves, thanks to the Sleepy Splat.
The first was "Terrible Two-Some", but that was when they were Kitten Boy and Chicklette, respectively. However, unlike their baby forms, Catboy and Owlette were snoring in their sleep while Kitten Boy and Chicklette didn't.
This marks the first time Gekko falls asleep during a mission.
Night Ninja makes a reference to the Sleeping Beauty fairytale, while claiming that the Sleeping Splat can put people to sleep for 100 years.
This is the last episode of Season 3 that features Night Ninja and the Ninjalinos as the primary villains.
In a sense, this is the fourth underwater-themed episode of PJ Masks.