But now there's a new onesie outfit that can understand a baby's mood and alert parents when they need to take action.
The Exmobaby is a wireless baby pajama that monitors baby's heart rate, skin temperature and movement through embedded sensors. The information gets logged in a nearby computer and parents can get alerts via their PC or cell phone.
Exmobaby software can also detect patterns, anomalies and emotions to predict the likely cause of future events.
The product is targeted to first-time parents who may be apprehensive about their new role. But is it really necessary?
Dr. Robert Marion, chief of genetics and developmental medicine at the Children's Hospital at Montefiore told New York Time's in an email that the system looked "crazy."
"Such systems malfunction all the time," he wrote. "They erroneously go off at all hours of the day and night, causing families unbelievable anxiety. "Families wind up focusing all of their energies on the monitors and wind up not sleeping."
These high-tech onesies are currently being tested in hospitals around the country and the company hopes to start selling them to parents for $100.
Photo via Exmobaby Holdings