"I tried Tracy Hogg's approach: Don't leave the baby to cry! Instead, when he starts up, go in there, pick him up, and love him until he stops. Once he's calm, lay him back down. If he starts crying again, repeat. Eventually he'll know it's time to sleep. Hogg said she had to do it 126 times with one child, but it dropped to 30 the next night, four the next, and soon she didn't have to do it at all. I tried this with my 3-month-old and it worked like a charm!"
• Have a solid bedtime routine. Experts say that regardless of which sleep-training method you use, having a stable bedtime—between 5:30 and 7:30 p.m. for infants, Vance suggests—and a steady routine are key. Whether it’s bath, book, lullaby, bed or a different sequence, doing the same thing every evening is part of the bedrock of good sleep hygiene. Blackout curtains and a white noise app may also help.