Friday, February 4, 2011

Resources for average amount of sleep by ages


Ok, the question is often raised, "How much sleep does my child need?"  Really, they need a LOT.  A lot more than you think!  And I have found myself surprised over and over again that they still need a lot even as they get older.  There is a saying from Dr. Weissbluth that "Sleep begets sleep".  I have found this to be a good motto.

I have listed some sleep totals from my favorite sources. Keep in mind that these are just "averages".  So some children will sleep above these amounts and need to.  I have found that if I shoot just for "average" in our routine, I may get even less actual sleep (due to life's natural disruptions, nap disruptions, various developmental phases,etc).  So I aim for at least average or even more to see how much sleep my child needs.  Often you will be surprised, that given the right opportunity and training, how much sleep they need.
At the end I will give further opinion on this.
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HOW MUCH SLEEP DOES YOUR CHILD NEED-FROM THE BABYCENTER WEBSITE
As a new parent, that's probably one of your biggest questions. Below are some general guidelines as to how many hours of sleep the average child requires at various ages. Of course, every child is different — some need up to two hours more or less sleep than others.



Age Nighttime Sleep Daytime Sleep * Total Sleep
1 month 8 1/2 7 (3) 15 1/2
3 months 10 5 (3) 15
6 months 11 3 1/4 (2) 14 1/4
9 months 11 3 (2) 14
12 months 11 1/4 2 1/2 (2) 13 3/4
18 months 11 1/4 2 1/4 (1) 13 1/2
2 years 11 2 (1) 13
3 years 10 1/2 1 1/2 (1) 12
* number of naps in parentheses




Per Babycenter website for preschoolers and older children:
You know your child needs less sleep now than he did when he was a baby, but how much less is still enough? Every child is different — some need more sleep and some less — but here are general guidelines for how many hours of sleep a child needs on average each day.
Age Nighttime sleep Daytime sleep Average total sleep
2 years 10.5 to 12.5 hours 1 to 3 hours (1 nap) 11.5 to 15.5 hours
3 years 10.5 to 12.5 hours 1 to 3 hours (1 nap) 11 to 14 hours
4 years 10 to 12 hours 0 to 2.5 hours (1 or no nap) 10 to 13 hours
5 years 10 to 12 hours 0 to 2.5 hours (1 or no nap) 10 to 12.5 hours
6 years 10 to 11.5 hours none 10 to 11.5 hours
7 years 9.5 to 11.5 hours none 9.5 to 11.5 hours
8 years 9.5 to 11.5 hours none 9.5 to 11.5 hours
* Note: The two sets of numbers don't always add up because children who take longer naps tend to sleep fewer hours at night, and vice versa.
  

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TYPICAL AMOUNTS OF DAY & NIGHT SLEEP FROM BABYWHISPERER WEBSITE:
Keep in mind that the following is an average - some babies need a little more sleep, and some will need less sleep.  You cannot fit a baby into a clock.  A baby's temperament, amongst other things, can influence their sleep requirements, as can milestones, teething etc.  The most important thing is to watch for your baby's tired cues.

Age/milestones             Sleep needed per day             Typical patterns
Newborn                        16-20 hours                       Nap 1-2 hours in every three;
Dont have control over                                             5-6 hours at night#
anything except their
eyes

1-3 months                    15-18 hours, until           3naps,1.5 hours each + catnap;
More alert and aware      18 months of age           8 hours at night#
of surroundings; able
to move head

4-6 months                                                           Two naps, 2-3 hours each OR;
Gaining mobility                                                       3 naps; 2 2hr naps & 1 45min catnap                                                                      10-12 hours at night

6-8 months                                                            Two naps 1-2 hours each;
More mobility; able to                                              10-12 hours at night
sit and crawl

9 months old                                                          2 naps of 1.5 hours each;
                                                                                11-12 hours at night

1 year old                                                              2 naps, 1 hr +1 of 1.25-1.5 hrs
                                                                                11.5hrs at night

                     The transition to one nap usually occurs in the 12-18 month range

18 months old                                                        1 nap - 2 hrs
                                                                                11.5hrs at night

2 years old                                                             1 nap - 1.5hrs
                                                                                11.5hrs at night

3 years old                                                             1 nap - 1.25hrs
                                                                                 10.75hrs at night
                       Daytime naps usually stop by the age of 4
4 years old                                                            no more naps!!
                                                                                 11.5hrs at night

5 years old                                                             11 hrs at night

6 years old                                                             10.75 hours at night


# - This is the longest stretch of night sleep that could be expected before waking for a night feed, and not all the sleep the baby will get at night.  Especially in the early days, babies will wake more often for feeding.

Short naps - some babies have biorhythms that make them short nappers.  Things to ask:
  * have naps ever been longer than 45 minutes or so?
  * is he cranky during the day?
  * is he sleeping well at night?
If your answers are no, no, and yes, then you probably have a short napper on your hands, and will have to adjust your EASY routine to reflect that.  You can read a real life example in the BWSAYP book on p. 215.
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From Healthy Sleep Habits, Happy Child (Dr. Weissbluth)
Newborn: 16-17 hours
4 months: 15 hours

**4-11 months: 14.25 hours
1 year: 14 hours
2 years: 13 hours
3 years: 12.5 hours
4 years: 12.25 hours
5 years: 11.25 hours
6 years: 11.25 hours
7 years: 11.25 hours
8 years: 11  hours
9 years: 10.5 hours
10 years: 10.25 hours
11 years: 10.25 hours
12 years: 10 hours
13 years: 9.5 hours
14 years: 9 hours
15 years: 8.75 hours
16 years: 9.25 hours
**The amount of sleep shown here is the fiftieth percentile rather than the average per the chart in the book.  When averages are listed in this book, they are usually a bit higher than this percentile.
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In general, I find the Babywhisperer average until 18 months to be quite accurate.  However I differ from that point on, more in the older children.  I have found from personal experience (mine and other moms, and also the forums on the Babywhisperer site) that a lot of the toddlers and preschoolers are overtired.  I do not believe that cutting the nap down is the best thing at those ages and those naps are quite short for those ages.  As children get older they are often involved in more things and structured activities (preschool, various classes,etc). They get more stimulation (both physical and mental) and really require daytime rest to stay at their optimal best.
I find the Babycenter info to be a bit low, especially the first year.
In general, remember these are averages and I think a lot of children do not get the rest they need.  There are other sources of information out there but I found a lot so low that I didn't even post them because I think they really are misleading as those children cannot be well-rested.  The bottom line is to look at YOUR child and how they are acting.  Are they seeming well-rested?  Are they generally happy?  (And a warning sign is that some children get hyper/silly and that is actually a sign of overtired, not the other way). 






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