Why was Rest+Sleep Talk used so much in Gen 2?

Question

Almost every time I play Gen 2 Random Battle, I always see things with Rest+Sleep Talk. On a lot of sample teams, Rest+Sleep Talk is there too. Why is it used so much?

Comments

Mainly because Sleep Talk could have Rest as a roll and instead of failing, it'd restore the maximum HP of the user again.

Answer 1

The user will now awaken from Rest three turns after it is used and can attack on the third. If Rest is used through Sleep Talk, it will restore the user's HP and reset the number of turns the user will remain asleep to two.

This is pretty much why.
Source: https://bulbapedia.bulbagarden.net/wiki/Rest_(move)

Comments

Ok thanks!

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Moves like sleep powder and lovely kiss are also very common in gen 2, so people sometimes use sleep talk to counter those moves.