Instruct: Classify a given review into positive or negative sentiment.
Query: Tons of practical ideas that really work!

My baby was waking up to breastfeed almost every hour and wouldn't nap either, and I was a sleep-deprived mess. My husband was sleeping on the sofa. We were all missing the happiness that should come with a new baby. This book saved our lives and our marriage. We saw some improvement almost immediately and it only took a few weeks for our baby to be sleeping all night. I now suggest this book to anyone I see who has blurry eyes and a cranky baby. It works! It works!PS I have a friend using a crying to sleep method with her sleepless baby and we both started addressing our sleep problems at the same time. Her baby is still crying for an hour or more every night (I just bought her this book) ...