Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Saved my life!

My toddler was not falling asleep until well after 10pm, then waking up for hours in the middle of the night. We were at our wits end and were referred to this book by a friend. Nothing had worked before this, so we were not hopeful, but followed the steps in the book anyway.To our joy and surprise, after a few weeks of sticking closely to the advice, our child was sleeping through the night. No waking, no crying before bedtime and our nights were once again pleasant. We established a schedule that we stick to today, a year later. It has made our relationship with our child calmer and more loving because we are not all sleep deprived! We love this book!