Let me raise my child the way I want!

Moms! I need to vent.. So my mom and big sister came over to spend the Thanksgiving holiday week with us, ok so they called me a bad mom because I put my child (almost 4 months old) down to sleep in her crib and I leave her to fall asleep on her own. She has a fixed schedule and they totally messed up her sleeping schedule. Am I wrong for putting my child in her bed to sleep on her own when she has shown signs of getting tired? Ugh