A few things you should know about sleep training:
1. It is really hard. It goes against all instincts to hear your child cry and not go to them to offer comfort. Parents often find it really difficult to follow through with the plan and often don't feel good about the sleep training process.
2. It doesn't last. Many families think that if they just go through the few days of crying the child will sleep good forever. The truth is as a parent you have signed up for being sleep deprived. Even children who learn to sleep through the night will regularly have periods of disruption brought on by physical or mental growth spurts or illness.
We recommend against sleep training . If you decide to let your child cry, our recommendations are that you first say to her, “I know you are safe in your bed, you are upset but I know you can do this. I love you, goodnight.” We encourage you at the very least to call it learning to sleep so that will help you be in a better mindset going into it.