A question regarding the sleep tokens in The Dragon expansion

By Der1, in Talisman

I read through the rules twice and still cant figure this out. Clearly....I'm missing something. How do the octagonal shaped sleep tokens get into play? Under what conditions are they drawn? Is it card based from the dragon decks?

Can someone clarify?

Thanks in advance.

See Page 6, Page 15 and the Rules Summary.

I think you are supposed to use the octagonal tokens to place on enemies when drawing a sleep token from the pool, and sometimes certain cards drawn from the dragon decks allow you to place additional sleep tokens.

See, I thought when you drew a round sleep token, that went on the reigning dragon for that turn. Ok, that makes sense. Thanks