At night. 1  Most babies at this age go to bed between 6 pm and 10 pm. 2  Most babies take less than 30 minutes to get to sleep. 3  About 10% take longer. 4  About 60% of babies wake at least once during the night and need an adult to settle them back to sleep. 5  About 1 in 10 babies will do this 3-4 times a night.
http://raisingchildren.net.au/articles/concerned_about_your_babys_sleep.html
Day sleep is important for babies up to and beyond 12 months of age. The following relates to babies aged 6-12 months. In the daytime. 1  85-90% of babies will have a daytime nap. 2  Naps usually last 1-2 hours. 3  Some babies will sleep longer. 4  Up to a quarter of all babies of this age nap for less than an hour.
http://raisingchildren.net.au/articles/concerned_about_your_babys_sleep.html
Share. As a new parent, you're bound to wonder if your baby is getting enough sleep. Here are the hours of sleep your baby is likely to need between the ages of one month and 12 months. But remember that every baby is different, and your little one may need more or less sleep than this.
http://www.babycentre.co.uk/a7645/how-much-sleep-does-your-baby-need
Sleep and Toddlers (1-2 years). Toddlers need about 11-14 hours of sleep in a 24-hour period. When they reach about 18 months of age their naptimes will decrease to once a day lasting about one to three hours. Naps should not occur too close to bedtime as they may delay sleep at night.
https://sleepfoundation.org/sleep-topics/children-and-sleep
Learn about baby sleep at every age, how to create a schedule, and how to swaddle your baby (text and video). You'll find tips from other parents on getting a baby to sleep, learn how much sleep your baby needs, and see the best cribs and bassinets. Articles (14). 1  The best sleep advice you've never heard. 2  Baby sleep basics: Birth to 3 months. 3  Baby sleep basics: 3 to 6 months.
http://www.babycenter.com/baby-sleep-basics
Sleep and Newborns (0-3 months). For newborns, sleep during the early months occurs around the clock and the sleep-wake cycle interacts with the need to be fed, changed and nurtured. Newborns sleep a total of 10.5 to 18 hours a day on an irregular schedule with periods of one to three hours spent awake.
https://sleepfoundation.org/sleep-topics/children-and-sleep
Babies spend 50 percent of their time in each of these states and the sleep cycle is about 50 minutes. At about six months of age, REM sleep comprises about 30 percent of sleep. By the time children reach preschool age, the sleep cycle is about every 90 minutes.
https://sleepfoundation.org/sleep-topics/children-and-sleep
1 Baby sleep basics: Birth to 3 months. 2  Baby sleep basics: 3 to 6 months. 3  6 major sleep mistakes parents make — and how to avoid them. 4  Baby sleep habits: Snorting, sweating, head banging, and more.
http://www.babycenter.com/baby-sleep-basics
As a guide: 1  an 8-9 month-old baby will sleep for about 14-15 hours every 24 hours. 2  an 8-9 month-old baby will have two naps per day lasting at least one hour each. 3  wakeful, grizzly babies probably need more sleep.
http://raisingchildren.net.au/articles/concerned_about_your_babys_sleep.html
1 About 60% of babies wake at least once during the night and need an adult to settle them back to sleep. 2  About 1 in 10 babies will do this 3-4 times a night. 3  Waking up is partly related to a child’s worry about being separated from parents.
http://raisingchildren.net.au/articles/concerned_about_your_babys_sleep.html
how much sleep infants
An infants sleep total of 10.5 to 18 hours a day on an irregular schedule with periods of one to three hours spent awake.  