Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It works and it's not cruel

Despite the controversy over "Ferbering" your child (a much more extreme form of the "let them cry it out" approach to infant sleeping), this method works and if done properly, is appropriate and helpful for older infants. He suggests 4 months and up but of course every child is different. We used it when our daughter was 5 months and had her on a nap and night sleeping schedule in about a week. She became (and still is) a terrific night sleeper.Basically, his theory is that children need to LEARN how to self-soothe and fall to sleep (or back to sleep) on their own and that you need to help them do this. He stresses getting enough sleep and sticking to a schedule (although you really can mess it up once in a while). One paradoxical bit is that "sleep begets sleep" but it's true!If you're not into "attachment parenting," give this a try.