Jennifer Waldburger

“You may be thinking, What if she’s emotionally damaged after crying? What if she never trusts me again? Your natural inclination is to just soothe her. And yet, you’ve been doing that—for weeks, months, or years—and that hasn’t helped her sleep. What’s more, the long-term effects of sleep deprivation are far worse than a few days of your child’s frustration in learning a new skill or accepting a new limit.”
― Jennifer Waldburger, The Sleepeasy Solution: The Exhausted Parent's Guide to Getting Your Child to Sleep from Birth to Age 5

“To avoid early-morning wakings, do not allow your child to get out of his crib or room until at least 11 hours after his bedtime (you can settle for 10½ hours if your child consistently—after three or more days in a row—seems rested after this much sleep). One of the most difficult times for your child to put himself back to sleep is in the early morning, particularly if he’s been used to getting up or coming into bed with you at that hour. But if you get your child up too early, he’s robbed of enough sleep and will start his day overtired and cranky—and will have a tougher time napping well. For additional information on how to troubleshoot early-morning wakings, please see the section entitled “Bumps in the Road” in Chapter 10, “Special Situations.” For Crib Sleepers If your child wakes in the early-morning hours, continue to do your check-ins just as you did at bedtime and throughout the night. If he hasn’t gone back to sleep, once the clock reaches your designated wake time, go into your child’s room, open the blinds or turn on the light, and say, “You did it! You stayed in your crib the whole night until the sun was nice and bright! We’re so proud of you!” Cuddle and hug him and give him a nice full feed, if he’s ready. Whatever you do, don’t allow your child to fall back asleep—in your arms, in your bed, or in his crib; he’s spent the night practicing how to sleep on his own, and you don’t want to undo your hard work. If your child has woken early but managed to put himself back to sleep—and is still sleeping at the designated wake time—lucky you! Allow him to sleep as long as he likes, up to 12 hours; you’ll want to wake him at this point to preserve his ability to nap well. If your child sleeps later than your scheduled wake time, remember to adjust his nap time later as well (but don’t adjust it any earlier, to avoid a too-early schedule for the day).”
― Jennifer Waldburger, The Sleepeasy Solution: The Exhausted Parent's Guide to Getting Your Child to Sleep from Birth to Age 5