Why do babies sleep better on mom's chest?
Christopher Snyder
Updated on March 20, 2026
Yet another reason why babies might like to sleep on your chest: the sound of your heartbeat. "It reproduces the in utero environment where mom's pulse was the primary and constant sound the baby heard," Nicole Porter, Ph. D., a sleep and fatigue specialist, told Romper for a previous article.
Why do babies like to sleep on moms chest?
Heartbeat While NoiseThe sound of your heartbeat might be one of the reasons your baby might like to sleep on your chest. If it is the mom's chest the baby is sleeping on, then it was your heartbeat the baby listened to for many months. So, you could consider using the white noise machine that has the heartbeat sound.