The song of Jigglypuff is often sung to completion, although only insomniacs and other Jigglypuff have ever had the opportunity to listen all the way through. The song of Igglybuff, on the other hand, has never been recorded in its entirety, nor are there any alive today who can truthfully claim to have heard it.

Igglybuff, like many baby pokemon, have difficulty remaining awake in the best of times. Even a mild physical exertion can drive them easily to sleep, and they have not yet trained their ears to resist the spellbinding and soporific power of their own vocal cords. Most Igglybuff songs finish after a few bars, without anyone save the singer falling asleep. A few of the higher-level ones make it through the first couple verses, causing the already tired to shut their eyes at last. With the aid of Chesto Berries, some have sung for over three minutes before dozing off, even putting most of the audience to sleep before they themselves ran out of energy.

It is recorded in ancient texts that an Igglybuff once finished its tune. The beauty of its song is said to have caused the armies of two warring nations to refuse to fight, and the kings of these countries, once bitter enemies, became friends and allies for the rest of their days. Some, seeking world peace, have sought to make Igglybuff sing once again, but all they have won for their strain are exhausted pokemon and unintended naps. Perhaps they have simply not figured it out. And perhaps the tale of an Igglybuff's song was never anything more than a legend formed by the human tendency to believe amazing things happen whenever you go beyond the impossible.