Effectiveness is the capability of producing a desired result. When something is deemed effective, it means it has an intended or expected outcome, or produces a deep, vivid impression.
The average newborn sleeps about 16 hours a day, but some need much less sleep and some much more. Also, it's not uncommon for a newborn's sleep pattern to change from day to day; he may sleep substantially less than usual one day and then catch up by sleeping more the following day.
It depends on the age and the child itself but on average, newborns should sleep 12 to 18 hours a day, toddlers (ages 1 to 3) should sleep 12 to 14 hours, 11 to 13 hours for pâ¦reschoolers, and 10 to 11 hours for schoolchildren ages 5 to 10. Sources: New York Times.