This is another gentler technique. The PUPD method works just the way it sounds: when it’s time to sleep, and your baby is fussing or crying in his crib or bassinet, you pick him up and comfort him until he’s calm and drowsy. Then, you put him back in his crib to sleep, repeating this cycle until your baby is finally asleep. PUPD is another method that requires quite a bit of patience, depending on your baby, and it won’t work for every baby; some babies find being picked up and put down so often over-stimulating, and they gradually become frustrated and worked up, instead of relaxed.
Prepare yourself for a few difficult nights. Hearing your baby cry can be excruciating, as every parent knows. During the waiting periods, set a timer and go to a different part of the house, or turn on some music, so you don't have to hear every whimper. As one BabyCenter parent says, "The first week could be rough. Try to relax and know that when it's all over, everyone in your household is going to sleep more easily and happily."
Create a comfortable sleep environment that's tailored to your child. Some babies need more quiet and darkness than others. Recordings of soft music or nature sounds or the sound of a gurgling aquarium can be soothing. Make sure the sheets are cozy (warm them with a hot water bottle or a microwavable heating pad, for example, before laying your baby down) and that sleepwear doesn't chafe or bind. Younger babies may sleep better when swaddled. Don't overdress your child or overheat the room.
Raising a healthy sleeper starts with a consistent bedtime routine. You can start enforcing this when your baby is roughly six weeks old. At the same time every night, read a book together, sing songs, and feed your baby before putting him or her into the crib. It may also help to get your child up at the same time every morning and put him down for naps at regular times.
Most sleep coaches say the ideal time to start sleep training (or promote independent sleep, not necessarily using the cry-it-out method) is based on your baby’s development, but is usually somewhere between four and six months, when your baby hasn’t had much time to get used to nursing or rocking to sleep. At this stage, most babies are also developmentally ready to learn the skill of falling asleep on their own, explains Jennifer Garden, an occupational therapist who runs Sleepdreams in Vancouver. Around four months of age, some babies go through a sleep regression because their sleep cycles change and there are longer periods of lighter sleep per cycle. “It’s a great time to work on independent sleep skills,” says McGinn. Other babies’ slumber derails around this time because they are working on new skills, like moving around and rolling. Some parents choose to wait until things settle down before embarking on a sleep-training method, but you don’t have to, says McGinn.