One of the most commonly held baby myths is that, “babies will sleep when they are tired.” Life would be simpler if it were true….but it’s not. Helping your baby fall asleep, figuring out when they need to sleep, and making sure they get enough sleep is pretty much the bane of every new parent.
How long should your baby be awake?
Newborn babies generally sleep a lot (according to Dr. Weissbluth newborns average between 11 – 18 hours of sleep per 24-hour period). However baby sleep is generally broken up into 7-8 “naps” varying in length from 15 minutes to 4-6 hours.
Most newborn babies (under 8 weeks) can’t stay awake very long (I sometimes refer to this as a baby’s “window of wakefulness.”) Although it varies by baby, most newborns can stay awake no longer than 45 minutes to 1 hour and 15 minutes. Some may not be able to stay awake more than 30 minutes at a time. This is generally the maximum amount of time you want your baby to be awake at any
point throughout the day.
So hypothetically this means that if your newborn baby wakes up from a nap at noon, she will need to go back down for another nap around 12:45. Assume she takes a 30-minute nap and then wakes up (now its 1:15 pm). Then she would be ready to take yet another nap at approximately 2:00 pm.
As babies get older their window of wakefulness (maximum time they can stay awake) gets longer, the naps generally get longer, and the number of naps they need gradually decreases and becomes more predictable.
How do you figure out how long your baby should stay awake?
A few newborn babies will fall asleep after a certain amount of time no matter how hard you try to keep them awake. Some babies will give very good clues that they are tired so you can settle them down to sleep as soon as they look a little glazed over, rub their eyes, yawn, etc. Some will stay awake far longer than their bodes can handle. You’ll know THIS is your baby if they stay awake for 1.5 hours or longer and then have a grand mal meltdown.
You’ll know you’ve figured out how long your baby should stay awake when she falls asleep really easily. If it’s a struggle to help her fall asleep (assuming something like hunger, tummy gas, etc. isn’t preventing her from falling asleep) you’re either trying too soon, or you’re trying too late.
As a general rule you should use the guidelines in the table below. I know you’ve been told “all babies are different” but in my experience almost ALL babies fall within these guidelines. Thus if your baby is vastly off the grid that I’m suggesting here, you probably have an overtired baby on your hands.
| Baby Age |
Time between Naps |
Nap Duration |
Number of Naps per Day |
| Birth – 6 weeks |
45 min – 1 hour |
15 minutes – 4 hours |
4-8 |
| 6 Weeks – 3 Months |
1 hour – 1 hour 45 minutes |
30 minutes – 2 hours |
3-5 |
| 3 Months – 6 Months |
~2 Hours |
30 minutes – 2 hours |
3-4 |
| 6 Months – 9 Months |
2-3 hours |
1-3 hours |
3 |
| 9 Months – 12 Months |
~3 hours |
1-2 hours |
2 |
Is Your Baby Awake TOO Long?
Probably Most parents keep their baby awake too long. It’s the #1 most common baby sleep mistake. People might tell you, “My baby just doesn’t need that much sleep.” Um….no. Just because they’re not sleeping doesn’t mean they don’t need to sleep. If your newborn baby is awake for 6 hour chunks of time during the day you have a sleep problem. It’s OK, it happens to the best of us. But let’s acknowledge it and work on fixing it rather than assuming that yourbaby is just different.
Most babies will let you know they’ve been awake too long because they’ll become fussy and difficult to soothe. Very happy babies will sometimes throw us a curve by hiding the fact that they are overtired by remaining calm and happy even when they’ve been up for a very long time (1.5 hours or longer). However you generally don’t want to keep your baby up for long windows of time (regardless of how delightful they are) because regardless of their behavior – overtired babies sleep poorly.
So put on your baby detective sleep hat and play around with your window of wakefulness. Once you’ve figured it out you can pretty much use that as a gauge throughout the day.
How long will your baby sleep?
Anywhere from 20 minutes to 4 hours. Some pediatricians will advise you to wake up your baby for scheduled feedings for a few days/weeks after they are born (this is common with preemies or other babies that might need a little extra love and food for a while) but once you get the green light from your pediatrician, you generally shouldn’t wake sleeping babies.
Should your baby be kept awake longer after longer naps?
No.
How long your little one can stay awake should remain relatively consistent throughout the day (the one exception to this rule is during the Witching Hours – see below.)
What about “Cat Naps”?
Little babies are notorious for nodding off for a few minutes here and there. The most common complaint is that they’ll fall asleep for a few minutes while nursing but then wake right up again when the breast is removed. Was this a real nap? Or do we wait for another hour before trying to put them down again?
Every baby is different but as a general rule, anything ~10 minutes or longer constitutes a REAL nap. Meaning if your baby falls asleep while nursing and then hangs out there for 10 minutes (lets face it we all do this from time to time) you will likely need to wait for an hour (or whatever your baby’s window is) before trying to put her down for a nap again. Similarly if she falls asleep for 10 minutes on the way home from the mall, you will have to wait an hour to try to put her down for a nap.
Some babies transfer well from the car well – they can be removed from the car while sleeping and continue to sleep happily in their car seat which is now sitting in the living room. If this is your baby, lucky you! If not you have two choices:
- Accept the occasional car “cat nap” as part of life.
- Plan for the car “cat nap” by bringing a nice latte and magazine with you. When your baby falls asleep in the car, park somewhere comfortable, leave the car running, and enjoy some quiet time while she sleeps.
What is the “Witching Hour”?
For most babies the Witching Hour(s) fall somewhere around 5:00 – 11:00 pm. This is a time of day where babies are generally fussy and will stay awake for a longer period of time. Thus it would not be unusual to have a newborn baby who is awake but generally unhappy from 8:00 pm – 11:00 pm. After this long window of being fussy and awake, most babies will then have their longest period of sleep (2-4 hour for a baby who is only a few weeks old, 3-6 hours for a baby who is 1-3 months old).
This is generally the ONLY exception to the window of wakefulness. So if you find your baby fighting sleep in the evening, it may simply mean that you have found your witching hour. While this can be exhausting as most parents are running out of steam at this time of night, it’s totally normal.
If, however, you find your newborn baby staying awake for 2-3 hours at a time at other times during the day, she probably needs additional help falling asleep or there is some unknown factor which is keeping her awake. Don’t be too quick to assume that “your baby is simply different” or that “she needs less sleep.”
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