How do I Fix my Baby’s Early Waking?

Sleeping dad with baby on himEarly morning waking is a common problem for babies, enhanced by the gradual early sunrises that we experience as we march into summertime. Unfortunately, fixing early waking is one of the hardest problems to solve, because the circadian rhythm resets to light exposure each morning and just a little light in the morning will cause your baby to ‘lock in’ to an early wake time. In addition, sleep is extremely light in the early morning, so your baby may have a difficult time going back to sleep even if he needs more sleep. If you search for advice on the topic, you’ll inevitably hear simplistic advice like ‘put him down early for bed’ or ‘put him down later for bed.’ Sometimes a simple change will work temporarily, but if your baby’s sleep pattern is stuck too early, then you’ll need to adjust his circadian rhythm in order to achieve a permanently later wake time.

The Science: The drive to sleep is coordinated by two things, homeostatic sleep pressure, which is the build-up of sleep need over time and the circadian rhythm. The circadian rhythm is your internal biological clock; it controls the timing of many events in your baby’s body including your baby’s biological bedtime and biological wake time. Your baby’s biological bed and wake times are bookended by a strong drive to be awake. This means that putting your baby down early may backfire and doing a sleep intervention past a certain time in the morning may be pointless. It’s really important to understand how the circadian rhythm works in order to make sure that you are asking your baby to sleep when he’s capable of sleeping.

Why would the circadian rhythm promote waking up so early? The answer is light exposure. Our circadian rhythms are designed to reset to light exposure and we are particularly sensitive to light in the morning. This means that just a tiny change in the lighting in your baby’s room may lead to a ‘locked in’ early waking. It’s important to note that it’s not the light that will wake your baby up, it’s that if your baby wakes up early for any reason and sees light, his body will immediately start to change in response to the light exposure and promote the drive to wake up at that time the next day. The major problem here is that you can’t just make it dark the next day and expect your baby to sleep later – it’s the same thing that happens in jet lag. Since light today leads to an early waking tomorrow, your baby will still wake up early the next day even though you may have taken steps to darken the room.

All that said, sometimes an early morning waking is not due to the circadian drive to be awake. Since early morning waking means that your baby might have just had 8, 9, or 10 hours of sleep, his homeostatic sleep drive will be restored and he won’t feel that same pressure to sleep that he did earlier in the night. This will make it really hard for him to fall back to sleep. Similarly, sleep is very light in the early morning hours, so it’s easy to wake up to a very soft noise or due to a little tummy rumble or wet diaper. All of these things can prevent your baby from sleeping in later even when he has the circadian ability to sleep later.

How Can I Fix my Baby’s Early Morning Waking?

First, you need to figure out the problem by answering these questions:

Does your baby have a sleep association and wake frequently during the night?

If so, do not work on early waking until you address the sleep association. See our blogs on how to do that here.

Is your baby waking for a reason?

If your baby already knows how to fall asleep independently and an early morning waking for food or comfort is the only problem, then you may not need to shift his circadian rhythm. Sometimes sleep associations can linger in the early morning hours long after sleep training. Since sleep is light in the early morning, your baby will be more sensitive to a tummy rumble or the cat roaming the halls. If you are feeding your baby and he’s not going back to sleep in the crib, but will sleep in your arms, then he has the capacity to sleep and sleep training should fix the early waking. Stated a different way, if your baby can sleep under certain conditions, but not in the crib, then he doesn’t have a circadian misalignment issue, but rather a sleep association. If your baby is used to eating in the early morning and you think he doesn’t need to anymore, then you will want to reduce his feeding as described here, before starting any intervention.

Is your baby going to bed too early?

Some parents get seduced by the idea that an early bedtime will solve all problems. An early bedtime will certainly solve some problems, but not every problem (see here for more on that topic). If you are putting your baby to bed at 6:00 PM and he’s waking up at 4:30 or 5:00 AM, he might be getting enough nighttime sleep. See our sleep chart to figure out if your baby is getting a normal amount of sleep. If he is, then you will need to follow the steps to shift his circadian rhythm (listed below) in order to achieve a later bedtime and wake time.

Is your baby waking because his circadian rhythm is ‘locked in?’

As described above, this is the most common issue in the summertime when sunrises get earlier. If your baby wakes up too early and no matter what you do, he won’t go back to sleep, then you will need to shift his circadian rhythm in order to give him the ability to sleep later.

Second, you need to take action:

If your baby only has a sleep association, then you will need to do sleep training to get your baby to learn how to go back to sleep when sleep is very light. Unfortunately many of the most popular interactive strategies don’t work as well in the early morning hours. Since your baby doesn’t have a very strong sleep drive at 5:00 AM, doing check ins for an hour may make him more excited, stimulated or upset (similar to naps). Generally, the more hands off you can be with your approach to early morning intervention the faster your results. For example, if you are comfortable waiting until your baby’s target wake time and then getting him that’s fine and should lead to later mornings within 4-5 days. He may not sleep at all for the first three days that you do this, but he will start to extend those mornings once you get through the first few confusing days. If you feel uncomfortable with that type of approach, then consider lying in your baby’s room and verbally soothing without picking him up until wake time. This usually takes more time to work, but is a preferable option for many parents. There are many other approaches, but as always the success of any approach relies on your baby’s personality, age, experience with prior sleep training and your parenting style. If you need personalized support for this, then book a consultation with us and we will help you devise a plan.

If your baby is circadian misaligned, then you will need to shift his circadian rhythm. To do this, you will need to do the following:

  1. Fully control your baby’s exposure to light and darkness. It is extremely important that you make your baby’s room dark enough that there is no change in light from the middle of the night to the morning. If it isn’t dark enough, then your baby won’t shift and will just get progressively more sleep-deprived. To achieve an appropriate level of darkness, you may need to get creative. We have found that inexpensive blackout Redi-Shades coupled with curtains do a great job at darkening most rooms to an appropriate level.

  2. You need to keep your baby up temporarily later than usual, possibly even well beyond an appropriate bedtime. It’s important to note that the later bedtime is not the thing that will lead to the later wake time – it is the fact that with a later bedtime, you’ll be able to allow your child to experience more bright light exposure before bed. It is this bright light in the evening paired with darkness in the morning that will lead to the shift in the circadian rhythm. Babies are very sensitive to the build-up of sleep pressure, so you have to be very careful about how you make bedtime later. Although a later bedtime will ultimately solve the early waking problem, you could create a new problem and more night waking if your baby becomes chronically sleep-deprived as a by-product of your adjustment. As a result of this challenge, we recommend vigilantly working to get your baby to take long naps (even if assisted in a stroller or car seat) near the end of the day. This isn’t what you would normally want to do, but in order to achieve a later bedtime, a long, late nap will do the trick. Keep your baby up as late as possible without pushing him into becoming an overtired mess. For young babies ~6 months, you may only be able to shift bedtime by as little as 15 minutes a day. For older babies ~12 months, you may be able to make bedtime later by as much as an hour in one day if naps were good. Keep shifting bedtime a little later each night. The later the bedtime and brighter the light, the faster the shift will happen.

  3. Allow your baby to experience bright light in the evening. Keeping sun safey in mind, go outside as much as possible while the sun is out and stay in West-facing rooms when you are inside. Indoor light works too, but it’s not as potent as the sun. If you have to be inside, then keep as many lights on as possible before bed or run an errand to a big box store or the grocery store. Do your bedtime routine in a dimmed room as usual.

  4. Don’t expect your baby to sleep in right away. Jet lag is so-called, because there is a lag in the time it takes the circadian rhythm to catch up with the change in the light dark cycle. It is normal and expected that your baby would still wake up early after the later bedtime. Don’t expect him to start to sleep later until the third morning. He won’t sleep until your target wake time at that point, but you should start to see a little bit of change. He should continue sleeping later on subsequent days. You can go to him and play quietly, but you need to keep it dark. You should also try to hold off feeding your baby until his target wake time (if you don’t think this is possible try tapering that feeding before starting this intervention as described here). You can pair this bedtime with sleep training if you think your baby has a sleep association and is circadian shifted.

  5. Allow your baby to take long naps to make up for lost nighttime sleep. Don’t worry about waking your baby up from naps during this process. Remember, your baby will be getting less sleep at night due to the later bedtime, so you need to keep naps nice and long to compensate. Don’t be afraid to offer assisted naps, as long as it’s safe,  to increase your baby’s daytime sleep.

  6. Don’t move bedtime earlier until your baby has slept until your target wake time for at least three days in a row. Once that happens, you’ll know that your baby is now locked in at a later wake time. You can start to move bedtime back to a normal time (if you were keeping your baby up temporarily later) by putting your baby to bed 15 minutes earlier each night. You can also scale back to normal napping to assist the earlier bedtime shift.

We KNOW this is not easy! It wasn’t easy for us to write, because the science is complicated, the causes of early waking vary and the little details are so important. If you are struggling to put it all together yourself, we would be glad to help you through a personal consultation.

Have a question? Ask us on our Facebook page.

Need personalized support?  Book a consultation with us.

© 2014 Baby Sleep Science: Sleep Resource Center




  1. C says:

    Thank you for this advice! Our son is 6 months old and since he was 4.5 months old, he’s been waking anywhere between 4.15 and 5.15 am, and we felt like we had tried everything, including experimenting with nap lengths etc. After reading this article we bought an extra strong lamp for our very dark living room (the sun goes down here around 4 pm during winter), and on the third morning he slept until 6 and has been doing that for a week now! We didn’t even have to keep him up longer at night! So thank you for this article – hopefully the change is permanent!

  2. So, when after you’ve established a later wake up time after 3 days and you can now start to put baby back to the ‘normal’ bedtime, surely over a period of 3 days, their body will re-adjust and their wake up time will revert back to old wake up? Doesn’t really make sense.

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  4. Stephani says:

    We’ve been working to shift an incredibly early wake time (330am) for almost 4 weeks. Have seen some progress (430am) but not much because I’ve been holding off a later bed time until naps were somewhat established (his sleep had gotten to be quite a mess).

    The last two nights I was able to get a 7pm laydown after a 4 pm cat nap — I’m wondering though if this is a good strategy? He’s only had 2.5 hrs of wt (falls asleep super easy) — is the lack of sleep pressure going to sabatoige our later sleep efforts?

    The day looks like this: 430 am wake (leave in dark crib alone happily until 6 am — sometimes he starts crying earlier say 5 or 530 so I do feed in dark and then leave until 6) … Nap 1 comes around 730/8 about an hour and then again around lunch time for a little less than an hour 45 or so.

    Feel so bad costing him sleep and making him lay by himself for 90 minutes each morning just want to make this work!! And as quickly as possible!! Since we are already a month in. 😦

  5. Rike says:

    That sounds so great! I try pushing back my little one since 4 months but it always ends with her so over tired that she starts waking at night and nap timing is falling apart. So after 1 week or so I cave in and put her down for nap 1 earlier again.
    What happens for us is that she sleeps well (60-80 minutes) for a later nap 1 (I never take her out of the pitch black room before 6am. Lately 6:30am to prepare for dlst) but then refuses nap 2 in the afternoon or just sleeps 30 minutes and after crib hour of 60-90 minutes I take her out and we either have a bed time between 5:45 and 6:30pm or she is extremely over tired and can’t sleep till 8pm. But wakes at 5ish the next morning anyhow. 11-11.5
    hrs of night sleep is what she usually gets. Plus 2-2.5 hrs of nap sleep.

    Any ideas or hints how to handle this second nap???? I would HIGHLY appreciate it. I feel so sorry that I cause her so much pain with all these attempts to get her to sleep longer in the morning. Baby is 14 months tomorrow.

  6. Thanks for the great information! Wondering if this will work on a 19-month old?

  7. Roma Dalal says:

    My baby likes to eat at 5 am. Do I feed and put back to bed, or try to have him wait it out unitl 530-6, how do I push it back?

  8. Resteze says:

    Great article. You have helped us understand sleep cycles and circadian rhythm and given some actionable advise.

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  3. […] clock and causes her to ‘lock in’ to an early morning waking (see our blog on that here). When the newspaper truck goes by or the neighbor’s dog barks at 5:00 AM and sleep is light, […]

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