Don't place anything in your infant's crib until you are completely satisfied your child has the ability to move with ease. Once baby has mastered rolling you can give her a stuffed toy as a transitional "comfort" object.
As a general rule, it is much better for a baby to sleep on a flat surface for the first year. Pillows are typically safe around 14 to 16 months of age, but it depends on the child. Before placing a pillow in your baby's crib, you must be 100 percent confident she is able to roll over with ease and sit for a prolonged period without any difficulty.
Steve and Andrew Hammond are co-owners of Baby First Aid–an Ontario-based company that specializes in baby and toddler emergencies.