Put this clip right after a SpongeBob A Few Moments Later card to jump straight to the morning-after moment, then follow it with a startled reaction sound if the character panics. It works best as the bridge between the setup and the payoff.
About this sound
This is a very short cartoon effect that pairs a rising slide whistle with a bright, alarm clock-like bell ring. It feels playful and suddenly alert, like a visual gag snapping into a wake-up punchline. The clip comes from the Pluto cartoon T-Bone for Two, released in 1942.