Board Thread:General Discussion/@comment-31926729-20170618102307/@comment-26967699-20170618220822

DatNuttyKid wrote:

I suspect the "must be willing" thing is specific to the Poisoned Apple. I seem to remember someone who read Regina Rising saying that it was poisoned before Regina learned about the Sleeping Curse from Maleficent (which raises the Sleeping Curse/Dark Curse trade into question, but that's another topic for another day) and, as Lola said, we've seen a forced Sleeping Curse in later seasons. I agree. Remember what Regina said about the Poisoned Apple, "Your body will be your tomb and you will be in there with nothing but dreams formed of your own regrets.". This actually contradicts with the other Sleeping Curses' effetcs as all they did was to send the people's souls to the Netherworld's red room.

If the Poisoned Apple was poisoned in the first place according to the readers of the book then maybe it's effects had to be mixed with the Sleeping Curse later, so that it would both do that dreams of regrets thing and put her in the state of death as what the Sleeping Curses do.