1 to 2 hours during the day.
Signs your child is ready to transition from two naps to one. 1  the child is getting 11 hours of uninterrupted sleep at night. 2  the child takes longer to fall asleep for the morning nap. 3  the child takes an increasingly shorter morning nap or too long of a morning nap and refuses an afternoon nap. 1 the child is getting 11 hours of uninterrupted sleep at night. 2  the child takes longer to fall asleep for the morning nap. 3  the child takes an increasingly shorter morning nap or too long of a morning nap and refuses an afternoon nap. 4  In the end, you feel stuck in the “one nap is not enough and two is too many” phase. Nap Time Sleep in the Baby Stage (4-12 months). Starting around 4 months (could be 3 months for some babies, or 5 months for others), you’ll notice your baby’s sleep patterns start to change. Your baby will start spending more time awake and less time asleep. This is normal. When your baby is sleeping 13-15 hours per day, this is within normal ranges for a very long time. If your baby is sleeping less, this may or may not be enough sleep. Depending on your baby’s age, a typical baby will sleep 11-12 hours at night and 2-3 hours during the day. It's just a framework based on when your baby gets tired during the day. Generally, infants between 4 and 15 months nap for one to two hours in the morning about two hours after waking up, and again in the afternoon for one to two hours. Some babies also take a late-afternoon nap, which most drop by 9 months. Sounds doable, until you remember you need to run an errand or meet a friend.  Many toddlers drop one of their naps by about 18 months. But it's fine if your toddler takes a little longer than this. If you think your little one is ready to have just one nap, try putting her down after lunch. That way, she'll be energised for the afternoon, and ready to sleep again at bedtime.  The experts unanimously agree on the average child's need to nap and on a napping schedule: Newborns sleep as much and as long as they need to. Between 4 and 12 months, babies move to two naps a day, one in the morning and one in the afternoon, each ranging from 20 minutes to three hours. In their second year, most toddlers go down for one two-hour nap in the middle of the day, and by their third birthdays, some will have given up naps entirely. Sears' view. Most toddlers this age still need at least one hour-long nap in the afternoon, which may actually help your child fall asleep more quickly and efficiently at night. Even if yours doesn't, a little quiet time — for her and you — won't hurt. Nap Time Sleep in the Toddler Stage (12 months – 3 or 4 years). As your little one enters toddlerhood, his sleep needs will gradually begin to decrease. At this point, most of his sleep should be happening at night, and he should be awake for most of the day. When your baby is sleeping 13-15 hours per day, this is within normal ranges for a very long time. If your baby is sleeping less, this may or may not be enough sleep. Depending on your baby’s age, a typical baby will sleep 11-12 hours at night and 2-3 hours during the day. Even when you've kissed the morning nap goodbye, your toddler's likely to continue needing her afternoon nap for quite some time. At age 4, more than 50 percent of children are still taking naps. And even though the majority of children (about 70 percent) stop napping at 5 years, 3 in 10 still need a nap at this age. That said, every child is different. Much depends on how many hours your toddler sleeps at night. Toddlers need approximately 12 to 14 hours of sleep in each 24-hour period. So if, for example, your child goes to bed at 8 p.m. and doesn't get up until 8 a.m., she may get her full quota of rest all at once, giving her no reason to need a nap. Most children under the age of 1 take two naps a day — usually one in the morning and another in the afternoon. By 18 months, most have given up the morning nap but still need an afternoon snooze to make it through dinner without a meltdown. So how many naps are normal? It depends on how old your toddler is. Over the course of the first year, as babies grow out of their infant stage and become toddlers, they go from needing five to six naps a day to needing two solid nap sessions a day (one in the morning and one in the afternoon). Here’s a good rule of thumb: If the child is getting a solid amount of sleep at night, the naps should add up to a total of two to two-and-a-half hours when the toddler is 12 months old, one-and-a-half to two hours at 18 months, and one-and-a-quarter to one-and-a-half hours when the kid reaches two years of age. Not at all, say experts. Although at around 18 months, toddlers typically go from two naps a day to one, napping is still vital to their health and well-being. In fact, experts recommend that 2-to 3-year-olds get 10 to 12 hours of sleep during the night, with an additional 1 to 2 hours of shut-eye during the day. 
http://sleeplady.com/toddler-sleep-problems/how-long-should-baby-nap/ http://www.babysleepsite.com/baby-naps-2/baby-toddler-napping-too-much/ http://www.parenting.com/article/baby-napping-basics http://www.babycentre.co.uk/a1051092/how-much-sleep-does-your-toddler-need http://www.babycenter.com/0_napping-2-to-3-years_7672.bc http://www.babysleepsite.com/baby-naps-2/baby-toddler-napping-too-much/ http://www.babycenter.com/404_when-will-my-toddler-stop-needing-a-nap_7646.bc https://sleep.org/articles/how-long-should-toddler-nap/ http://www.parents.com/toddlers-preschoolers/sleep/naps/how-to-help-your-toddler-nap/
how long a nap for toddler