No one likes to talk about sudden infant death syndrome (SIDS); it is a terrifying topic. SIDS is defined as the sudden death of an infant, which remains unexplained after a thorough investigation. These deaths occur in the first year of life, with the highest risk occurring between 2 and 6 months of age. Fortunately, these deaths are becoming less common, thanks in large part to the early ’90s Back to Sleep campaign, which urged parents to place infants to sleep on their backs. Suffocation is also a major risk for infants if they do not sleep in a safe sleeping environment.
If you’re on the fence about sleep training, it can be helpful to think of it this way: What is my baby’s developmental need right now? “At 11 months, they don’t need to eat during the night but they do need consistent sleep,” says Garden. Yes, those nights of crying are heartbreaking. But chances are, if you’re considering sleep training, it’s because what you’re currently doing isn’t working for you.

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.
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