How well does your baby sleep? Whether he screams at bedtime, frequently wakes up, or doesn't like to nap, it may seem like a good night's sleep (for everyone!) is something only dreams are made of. If you think sleep training might be the answer but aren't sure where to start, you've come to the right place. From cry-it-out to tear-free approaches, this list of books outlines the most popular sleep-training techniques. Before starting any sleep training method, talk to your pediatrician about your child's sleep needs. Also, explore these products that can help babies sleep.