There is no substitute for skin-to-skin contact with their parents, especially their mothers. The cold, loud, sterile NICU environment is abrasive and scary for tiny, fragile babies, and that is amplified for preemies, who under normal circumstances would still be in the womb. The warmth of their mother’s skin, the sound of her voice, rhythm of her heartbeat, and the smell of her milk let them know that they are loved and they are safe in a way that nothing else can.