Where do you find your security?
When our first DD was a baby, she didn't cling to a pacifier or stuffed animal. But she found security in her receiving blankets - or as she soon called it, her "gigi" (pronounced "gee gee"). I have no idea where the name came from, but it was all her idea. And at 5, she still loves her gigis.
Now she is 2. We are trying again. Yesterday at naptime went smooth as silk. Bedtime - not so much. I caved. I couldn't take the crying and after nearly an hour of not going to sleep (not crying the entire time, but a lot of it) - I gave her what she desired.
Pop. Once it was in her mouth, she nearly instantly fell asleep.