Have some patience, new mama. While some newborns sleep for a six-hour stretch in the first six to eight weeks, most won't until they're at least three months old. But there are some things you can do to help her learn to sleep better. First, keep a nightly bedtime routine (think: bath, jammies and lullaby). Teach her to fall asleep on her own by laying her in her crib while she's tired but not yet asleep. If you always rock her or give her a bottle until her eyes shut, she may think those actions are necessary for sleep. But if she knows she can fall asleep on her own, she's more likely to do that if she wakes up at night, rather than call out to you.