How Long Does Sleep Training Take For a Baby & How To Do It

Last updated: April 14, 2026

If you’re considering sleep training, one of the first questions you probably have is: how long does sleep training take? The answer isn’t one-size-fits-all. Every baby is different, and factors like age, temperament, and the method you choose all play a role.

Some families see progress in just a few nights, while others may need a couple of weeks for consistent results. The good news is that with patience and consistency, sleep training can lead to better rest for both you and your baby, making the short-term effort well worth it.

As a mom of 3 myself (twins + 1), I ended up using sleep training with 2 out of 3 of my children. In both cases sleep training took approximately 3 days to work, which really wasn’t bad in the grand scheme of things.

By sleep training my children I was able to reduce feeling overwhelmed and get some time at night for myself. This made a huge difference in improving my mood and reducing stress. That’s why I have chosen to share my advice on how long sleep training takes and the methods you can choose from to do it.

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What Is Baby Sleep Training?

Sleep training is when a baby is put to bed wide awake and he or she can go to sleep without being rocked, cuddled, or nursed. Additionally, a sleep trained baby will have the ability go back to sleep on their own when they wake up during the night.

When Can You Start Sleep Training?

The ideal time to start sleep training depends on your baby’s development, but it is recommended to start sleep training at 4-6 months old. At 4 to 6 months old, babies can sleep for longer periods of time at night (6-8 hours). Plus, babies do not develop as many habits at this young age, so it is easier to sleep train them.

Do not worry though if your baby is older than 6 months. Many people successfully sleep train their babies or toddlers, even at 2 years old. Just be prepared that the length of sleep training might be longer if you are doing sleep training for the first time with a toddler.

When Can Babies Sleep Through The Night?

For the purpose of this post, we are defining sleeping through the night as a baby having uninterrupted sleep for 6 to 9 hours. Many babies do not sleep through the night until they are 6 months or older.

Before this age they typically wake up for feedings. Even at 6 months old, a baby might still wake up one or two times for milk, but they should be able to go back to sleep as soon as they have been fed.

For reference, when a baby is 0 to 3 months old, it is the most difficult time to keep them sleeping in long stretches because they might need to wake up after every 2 hours to eat.

How Long Does Sleep Training Take?

The time required to fully sleep train a baby differs from baby to baby. For some parents, it takes 2 to 3 weeks to sleep train and for some parents, it only takes 3 to 4 nights. You will know that you have been successful in your mission when your baby starts sleeping through the night and does not need your support to fall asleep.

As I mentioned before in my personal experience sleep training took 3 nights. My babies were around 6-7 months old when we sleep trained them.

I also want to mention that as they grew, my kids would go through phases where they started waking at night again. We would need to sleep train again for 1-2 nights, to get back to good sleep habits.

How Long Does Sleep Training Take For Naps?

Naps during the day are essential for the well-being and development of babies. Babies should take proper rest during the day because they are growing and developing at a rapid pace, which means they need their rest.

Some babies do not like to nap during the daytime and it is a battle to put them down for their naps. For such babies, it is important to teach them how they can put themselves to sleep. It can take about a week to sleep train a baby for naps.

This is important to note because you might not be successful in sleep training at nap time right away. It’s important to keep working on sleep training at nap time, even after a few days, until your baby gets the hang of putting themselves to sleep and staying asleep.

Sleep Training Methods

It is every parent’s wish that their babies can go to sleep themselves and sleep through the night. However, every baby is different and what works for one baby might not work for the other one.

So, parents end up choosing different approaches for sleep training, according to what is best for their baby and what they are comfortable with. Below we will review different baby sleep training methods that you may wish to try out.

Ferber Method

The Ferber method is also known as the graduated extinction method. With this method, you only let your baby cry for a set period before you go and check on your baby. This is the sleep training method we used in my house and we thought it worked well and was well worth it to do.

You will use time intervals before checking on your baby. For the first day you can start with 5, 10, and 15 minutes. These time intervals keep increasing until your baby eventually falls asleep. Let’s discuss how you can do the Ferber method with your baby.

1. Once your baby’s bedtime routine is complete, put your baby down awake but slightly drowsy, and leave the room.
2. Continue to monitor your baby (a video baby monitor can be very helpful).
3. If your baby cries, wait for the time interval you have set before you go inside the room to check on them. Initially you can wait for about 5 minutes.
4. When you re-enter the room, do not pick up your baby. Just pat them on the head them and make sure they have everything they need (such as pacifiers). Leave the room after 1 to 2 minutes even if your baby is still crying.
5. If the crying continues, you can go into the room again but this time you will wait a bit longer, about 10 to 15 minutes before entering your baby’s nursery.
6. Continue this cycle until your baby puts themself to sleep.

No-Cry Method

Sleep training a baby depends on the temperament of the baby. If a baby is cooperative there will be no issues, but if a baby is resistant then you will have to deal with fussiness.

Using the no-cry method can be difficult for parents of fussy babies. But, implementing this method decreases the amount of time your baby cries.

The no-crying sleep method takes a little longer to progress because parents have to give a lot of attention and comfort to their baby. Parents stay in the room for more time during bedtime, which helps their baby fall asleep without crying. Let’s review how the no-cry sleep training method works.

1. Establish a consistent schedule for daytime and nighttime sleep. Here is an example 6 month old schedule to help you out.
2. Put your baby to sleep in their crib and leave the room.
3. As soon as you hear your baby crying, immediately go inside the room and pick your baby up and soothe them.
4. Once your baby settles again, put them back in the crib and let them fall asleep by themselves.
5. With this practice for a few days, the baby will get used to sleeping like this.

Chair Method

The chair method is the ‘no tears’ technique in which the parent sits beside the crib on a chair and tries to soothe the baby while sitting next to them. It involves comforting your baby when needed and then gradually moving the chair closer to the door and eventually out of the room.

In this method, the baby does not feel alone and learns the most important skill of self-soothing early. Parents who use this method for sleep training like it because they are able to stay close to their baby.

The chair method can take a few weeks until the baby gets used to self-soothing, so it is not an ideal method if you are looking for quick results. Let’s take a look at the process of putting your baby to sleep using the chair method.

1. Perform the regular nighttime routine every day to familiarize your baby with sleep time.
2. Place a chair right next to your baby’s crib.
3. Put your baby in the crib while he is drowsy, but still awake.
4. Sit in the chair and tell your baby that it’s time to sleep.
5. In the beginning, your baby will fuss a little before going to sleep. You can try to soothe them verbally or pat them a little.
6. Do not interact too much, it might make your baby become fully awake.
7. Leave the chair and go out of the room once your baby falls asleep.
8. Repeat the process if your baby wakes up and fusses.

Cry It Out Method

The cry it out method includes several different methods which involve letting babies cry, and in turn, they will eventually learn to fall asleep. The parents decide a specific time to let their baby cry as much as they want. Once the time is over they go inside and check up on the baby and console them.

The cry it out method typically depends on the age of the baby and how much time parents want to take to get their baby sleep trained. Here’s how you can sleep train your baby using the cry it out method.

1. Create a baby bedtime routine to let your baby know that it’s time to sleep.
2. Place your baby in the crib, on his back, and leave the room.
3. Make sure you are monitoring through a baby audio or video monitor to see what your baby is up to.
4. If your baby cries, go into the room and try to soothe your baby verbally.
5. Do not pick your baby up and try to console him.
6. If your baby does not stop crying then lookout for clues, there might be something that is bothering your baby e.g. dirty diaper, teething, hunger, or colic pain.

Fading Method

The fading sleep training method allows your baby to decide his sleep time and what works best for him. If a baby is not ready to sleep then he will not go to sleep willingly.

Through the fading method, parents pay close attention to the cues that their baby gives that he is ready to sleep. The baby decides at which time he wants to sleep and thus goes to sleep in less time. This type of method can be time consuming, but it is worth it in the end. Here’s how you can follow the fading method.

1. Track your baby’s sleep time and when they easily goes to sleep for a week. Make sure to track the time when your baby naturally falls asleep – even if it is 10 pm.
2. Look out for fussing, eye rubbing, and yawning, all these are signs that your baby is sleepy.
3. When you see these signals, start your baby’s bedtime routine immediately.
4. Put your baby in their crib and leave the room. If they cry a little do not go back. Maybe they will fall asleep.
5. If the crying period gets too long then you should go and take your baby out of the nursery.
6. Try putting them to bed again after 20 to 30 minutes.
7. Eventually your baby will settle at their natural bedtime and go to sleep.

My Sleep Trained Baby Is Waking Up Again: How Long Will Sleep Training Take This Time?

The biggest misconception that parents usually have is that they think they will have to sleep train only once. Just like any adult, babies can also sometimes have a tough time going to sleep.

There can be several reasons due to which a sleep trained baby can no longer go to sleep on his own. It can be due to sleep regression, hitting a milestone, teething, getting sick, or even missing a nap.

If your baby or toddler has gotten into bad sleep habits after going through sleep training and sleeping well for a period of time, the good news is that sleep training will take less time this time around. You can expect it to take 2 to 3 days for your baby to regain his sleeping habits once again with some sleep training help.

Baby Sleep Training FAQ

New parents have many concerns about sleep training their babies and they want to educate themselves about every detail. Here we have answered some frequently asked questions about sleep training a baby.

Is Sleep Training Bad?

Scientific studies show that there is not much difference in the behavior, sleep quality, and the parent-child relationship of a baby who has been sleeping trained and a baby who has not been sleeping trained. This means sleep training has been proven to not have any negative long-term effects on kids.

Can Sleep Training Be Implemented For Middle Of The Night Wakings?

Yes, it can be implemented to stop your baby from waking up at night. This was actually one my kids problems and we used the Ferber sleep training method when she would wake up every night at 11pm or midnight to teach her to go back to sleep on her own.

What Should I Do If Baby Cries For Hours?

Babies tend to cry a lot and sometimes this happens in long stretches at night. When the crying session continues for more than hour, here is what you can do.

• Feed your baby.
• Look out for signs of pain, dirty diapers, or irritation. If there is a problem, address it.
• Soothe your baby.
• If there is no apparent reason for crying too much, and after trying all the things that you can, you might decide to let your baby cry.

Is Letting a Baby Cry It Out Dangerous?

When a baby is healthy and there is no medical reason for crying, then it is totally fine for babies to cry their hearts out. Crying does not create behavioral or medical problems for a baby.

What Should I Do If Sleep Training is Not Working After 2 Weeks?

You spent hours researching sleep training techniques, and it still did not work for you. Here are a few things to consider if it’s still not working.

Take a baby sleep class

Sometimes videos and step-by-step guides do just the trick to help you understand what you need to be doing. The same goes for baby sleep training. Check out this online baby sleep class that will help getting your baby sleeping well if they are between the ages of 4 months and 2.5 years old.

Naps are important

Sleep training does not mean that you have to sleep train your baby for the night time only. Daytime naps are equally important for babies.

Having the same schedule for many days will help your baby to be sleep trained. The way you put your baby down for naps is also very important, so do not forget to put your baby to nap and have a routine when you do.

Consistency is the key

With babies and toddlers, consistency is pretty much the key for everything. Babies tend to familiarize themselves with things and people very easily and they tend to adapt or change habits easily as well.

It is important to follow a schedule every day (or at least most days). Check out these baby schedules by age for the first year to make sure you are on the right track.

Do not run to calm down your baby

It is not good for sleep training that whenever a baby starts fussing their parents run to soothe them. Give your baby a minute and see if they can self-soothe and go back to sleep without being held.

Put your baby to sleep earlier

Sometimes a baby needs an earlier bedtime. Often this can improve your baby’s quality of sleep and also help your baby sleep through the night uninterrupted.

How Do I Handle Being Scared To Start Sleep Training?

It is normal for new parents to be scared to start sleep training their babies. Mostly because they are so used to nursing, rocking, or patting their baby when they put them to sleep. Let’s discuss a few suggestions to overcome this fear.

• Believe in yourself and your decision. Only parents can decide what is best for their baby and when they think it’s time to sleep train their baby.
• Sleep training your baby does not make you a bad mother or father. In fact, it can help everyone in the family’s sanity because it can lead to the entire household getting enough sleep.
• Sleep training is a revolution in the parenthood journey and it makes a parent’s life easier.
• If you are not ready to sleep train your baby, then do not try it yet. Give yourself some time to think about it. If you move forward with sleep training before you are ready, there is a good chance you will not be successful.

Can You Sleep Train and Still Nurse At Night?

Yes, absolutely. You can still nurse your baby while sleep training. Eventually, as your baby gets used to sleeping on their own, night waking and feedings will likely decrease naturally.

Sleep training isn’t an overnight fix, but it also doesn’t take forever either.

Most families see meaningful progress within a few days to a couple of weeks of starting sleep training, especially with consistency and a clear plan. Remember, small improvements add up, and setbacks are a normal part of the process. Stay patient, stick with your routine, and trust that your baby is learning an important skill.

In the end, the time you invest now can lead to better sleep for everyone in your home. Finally, keep in mind, sleep training a baby is typically not a one-time job. You might need to repeat the process due to sleep regression, sickness, or other reasons. Good luck – you can do it!