I gave my little one a pillow (a very flat one) in his crib at 11 months. When I would let him nap in our bed he always slept on a pillow, so I thought let's try it out. He loved it and hasn't looked back since. He is now 18 months old and sleeps on a pillow with a blanket at school. He has always had a blanket in his crib. I think the smothering part, from everything I have been told by doctors and by reading, greatly diminishes when they can turn their head appropriately and when they can flip from back to front and vice versa. To make you feel better, try it at naptime and see how it works. This way, you can look in on your little one from time to time to help comfort you as well. Hope this helps.