Many new parents are excited to bring their newborn babies home. At the same time, the prospect of round-the-clock feeding leaves many of them equally terrified. They may be unsure whether to feed a baby every hour, every couple of hours or on demand.

We've all heard the common adage "Never wake a sleeping baby." But that's easier said than done when stressing about your newborn's eating habits. The simplest advice is this: Feed the baby when they're hungry—and they will let you know when they are, according to the American Academy of Pediatrics.

Generally, you only need to routinely wake a baby for feedings until they regain their birth weight, according to Krystyn Parks, R.D., I.B.C.L.C., a pediatric dietitian in Orange County, California.

"Most babies lose weight in the first few days of life but will regain their birth weight by two weeks. If there are no other health concerns, at this point you can usually stop waking baby for feeds," she explained.