What if a Pokemon only knows Sleep Talk?

Question

If a Pokemon only knows sleep talk and the opponent puts it to sleep and the Pokemon uses Sleep Talk, will it just infinitely use sleep talk? For example, if you send out Snorlax against Malamar, and Malamar used hypnosis and then Snorlax used Sleep Talk, will your game just run the same thing over and over again?

Comments

I believe Sleep Talk fails.

---

I know that sleep talk can't call itself, but I don't know what happens if the user doesn't know any moves that sleep talk can call.

Answer 1

https://replay.pokemonshowdown.com/gen8ou-1082524635

As you can see, the Snom uses sleep talk, but it simply fails indefinitely.