We asked experts what parents should know about how sleep impacts infant development and how to establish routines.

So 20 years ago, I wrote a book called The Happiest Baby on the Block ... now bringing babies in bed with them or because the babies are rolling over during their sleep to an unsafe position.

Oh, and a tip: Put the crib together in the room where your baby will sleep (the AAP recommends that your baby sleeps in your room for their first six months). You don’t want any parts to loosen ...

You're newly postpartum, lying down in bed just hoping your baby drifts off ... You can promote healthy sleep cycles by sticking to a calming bedtime routine: reading books, taking a warm bath ...