Bedtime is a ritual part of parenting to help children feel more secure and become accustomed to a more rigid schedule of sleep than they might prefer. The ritual of bedtime is aimed at facilitating the transition from wakefulness to sleep. It may involve bedtime stories, children's songs, nursery rhymes, bed-making and getting children to change into nightwear. In some religious households, prayers are said shortly before going to bed. Sleep training may be part of the bedtime ritual for babies and toddlers.