Before choosing the most effective sleep training method for your baby, you need to understand what each method is truly about. (topcribmattressreviews.com)
From my understanding critics of sleep training methods involving infant distress do argue that these methods can indeed cause chronic stress as the baby has learnt not to signal when struggling during the night. (expectingscience.com)
So to help parents and their children get to this point, a variety of baby sleep training methods exist. (romper.com)