Wow- maybe I'm not getting advice the same as you guys all did, or maybe (just maybe) I'm trusting my daughter's cues, but she's had a blanket since she was born! True, it started as a swaddling with the positioner so she couldn't move, like the other mother suggested- but she never slept more than 20 minutes before she was awake. She didn't like being swaddled because she couldn't reach her hands, and she didn't like to sleep on her back- turns out she's a tummy sleeper like her mommy. I was terrified the first time she did this, and what I found out was; THEY ONLY THINK THAT'S WHAT CAUSES SIDS!!! My mom said I slept on my tummy- and I'm still here. So I asked her doctor. He said to follow her cues. Well, ladies, my daugeter is a happy, HEALTHY 9-month-old girl who curls her blankie in her hand before flip-floping all over her crib at night, and when she wakes up in the mornings, she has conversations with her TEDDY BEAR (that's right- I have a stuffed animal in there too- along with her blankie). So if you're scared, then don't do it- no one can make you. But just be aware- you're baby could just as easily suffocate by not picking his/her face up from the crib mattress. I'm not saying not to try to protect your little one- follow your heart. But remember, you're gonna have to let go sometime....