My daughter is 10 weeks old and we have been happily using this carrier since she was big enough to fit in it.(8 lbs.) I use the carrier when I'm running errands, cleaning bottles, doing laundry etc. It is so easy to use and my baby girl is always comfy and cozy in it. She is not a big napper, but she can always fall asleep and stay asleep in here. I love having her so close and she loves it too. My friends with older babies love the ease of this product too. Every mom should have one.