Sleep is crucial for all of us, especially for babies.

When our children sleep, lots of good things happen in their bodies. It promotes growth, helps the heart and can beat germs.

When our kids aren’t sleeping, we’re probably not either.

Shannon LaNier sat down with renowned pediatrician Dr. Harvey Karp – creator of the Snoo and author of "The Happiest Baby on the Block". Karp invented something that helps babies sleep longer – and safer.