Board Thread:General Discussion/@comment-25926288-20150316010241/@comment-26211594-20150316030358

I don't think they age during the sleeping curse. In the original tale, Sleeping Beauty slept for 100 years. They even referenced that fact with Snow White's horse napping for "a hundred years or so" implying Regina cursed it. Of course, that would mean she traded the Dark Curse for it off screen, and I wouldn't think Rumpel would have given her the curse that early in her studies with them.