The distance will vary as the planets orbit, from as little as 42 million kilometers to as much as 174 million kilometers. Mercury varies from 44 to 66 million kilometer from â¦ the Sun. Venus has one of the least eccentric orbits, averaging about 108 million km.
4-12 Months Old: 14 - 15 hours per day. While up to 15 hours is ideal, most infants up to 11 months old get only about 12 hours of sleep. Establishing healthy sleep habits is a primary goal during this period, as your baby is now much more social, and his sleep patterns are more adult-like.-3 Years Old: 12 - 14 hours per day. As your child moves past the first year toward 18-21 months of age he will likely lose his morning and early evening nap and nap only once a day. While toddlers need up to 14 hours a day of sleep, they typically get only about 10.
Discover the hows and whys so that you can get back to those restful nights. Newborns less than three months old sleep between 14 and 17 hours each day. As few as 11 hours and as many as 19 hours may be appropriate. Infants (between 4 and 11 months old) sleep between 12 and 15 hours each day.