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.
Your baby needs a lot more sleep than you do. Over a 24-hour period, the average newborn sleeps for 16 hours. Even at three months, your baby will need to sleep for about 15 hours over the course of 24 hours.Your baby won't take all her sleep in one long stretch, even at night.At first she'll need to wake up for feeds. From when she's newborn to when she's three months old, your baby will sleep in sleep-wake cycles through the day, with longer spells at night. The length of these sleep cycles depends on your baby.y then, most babies enjoy about 11 hours of sleep at night, with the odd brief waking, and two daytime naps of about one hour 30 minutes each. By 12 months your baby may sleep for between 12 hours and 14 hours over the course of 24 hours, including two daytime naps. By about 18 months, naps will reduce to one a day.