At what age can sleep training start?

Most babies will be ready for sleep training between 4 to 6 months of age. You can start preparing your little ones for sleep training before that by creating a comfortable night time routine e.g. singing lullabies, reading story books and the like. You may also want to keep each routine to 15 minutes before leaving the room. http://sg.theasianparent.com/sleep_baby_sleep/ http://www.babycenter.com/0_baby-sleep-training-the-basics_1505715.bc