Some children will struggle with going to sleep, while others will just go right down. It doesn't matter what strategy you try to get them to sleep, this is a reality. One thing you can do to help, though, is to stick to a set bed time. This will help your child sleep better and longer. Having a regular bed time is the key to establishing a regular sleep cycle. Experts suggest putting the baby down as early as possible. A good bed time is between 7:30 and 8:00 since babies need nine to eleven hours of sleep.
Try to make the bed time routine peaceful and predictable. Once again, do things in the same order each night. You might want to try rocking, caressing, singing, playing soft music, or using a white noise machine. These activities can help signal to the baby that the day is over and it's time for bed. It's not a good idea to nurse or bottle feed your baby to sleep; this will prevent him from being able to soothe himself if he wakes up during the night. Instead, hold him until he is settled, then let him fall asleep by himself in the crib.
Sources:
www.parents.com
www.babycenter.com