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.
Baby Sleeping Schedules. Expect your newborn baby to sleep a lot; the average baby sleeps for 16 hours a day. Most of your baby's sleep schedule is going to be broken into one long period of three to five hours of sleep, plus several shorter sleep periods of two to three hours.