Sleep experts who support the cry it out approach (as well as most pediatricians) disagree. They say it isn't traumatic for babies to cry alone for short periods of time with frequent check-ins by Mom or Dad – and the end result is a well-rested, happier child. They say no tears sleep strategies may cause babies to be overly dependent on comfort from a parent at bedtime, making it harder for them to learn to soothe themselves to sleep.
"As a last resort, I broke down and gave Ferber a try. It's been two and a half weeks, and I see no real improvement. My daughter goes down faster at night, but the crying breaks my heart. I miss snuggling with her. She still wakes up every 30 to 90 minutes after her first two-hour stretch. She shrieks when it's time for a nap. I broke down and nursed her to sleep for her afternoon nap because I couldn't stand to see her so exhausted."

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"My first daughter was sleeping through the night (10 p.m. to 9 a.m.) by 6 months. We had a complete bedtime routine: a bath, a book, a bottle, then to bed, a little music in the crib, and asleep in 10 minutes. It was wonderful, but that scenario didn't work for my second daughter and hasn't worked for my son, so I've tried different things for each of them. Sometimes a plan doesn't work. Listen to your baby – he or she will tell you what you need to know."
Though many of the parents I see in clinic have put up with terrible sleep for years, sleep training is a safe and effective tool to help babies learn to soothe themselves at night. For this guide, I reviewed the literature on infant sleep. As director of the Pediatric Sleep Center at Yale University, I have extensive experience helping families to address sleep problems. I have also written a book on the topic, which was inspired by sleepless nights with my own children.
If you’re on the fence about sleep training, it can be helpful to think of it this way: What is my baby’s developmental need right now? “At 11 months, they don’t need to eat during the night but they do need consistent sleep,” says Garden. Yes, those nights of crying are heartbreaking. But chances are, if you’re considering sleep training, it’s because what you’re currently doing isn’t working for you.
Pantley offers a gentle and gradual approach to all aspects of sleep, customized to your baby's needs. She recommends rocking and feeding your baby to the point of drowsiness before putting him down – and responding immediately if he cries. Parents are urged to keep sleep logs, nap logs, and night-waking logs. Pantley also describes a six-phase process for teaching a child to sleep in a crib.

This is a very gradual sleep-training method ( McGinn gives her clients a two-week plan for implementation) and requires a lot of discipline on the part of the parents. Again, you prep your baby for bed, but instead of leaving the room, you sit in a chair next to the crib. When they fall asleep, leave the room, but every time they wake up, sit back down in the chair until they fall back asleep. Every few nights, move the chair further and further away until you’re out of the room.
• No tears method. Created by sleep expert Elizabeth Pantley, this technique, also known as the no-cry method, involves subtly shifting your child’s sleep habits. For example, one trick, known as “fading,” suggests gradually easing out of baby’s go-to sleep strategy. For instance, if she always needs to be rocked, you would rock less and less until you can put her down to sleep without any rocking. Another technique, called substitution, switches out the routine—so if baby always nurses before bedtime, read a book instead.
Hi @Adriana – Thank you for writing to us. Sorry to hear that your toddler is having issues with sleeping in her own crib and sleeping through the night! There are MANY parents that use gentle sleep training with their toddlers and even preschoolers and older! If that’s what you’re comfortable with – go for it! If you’d like help formulating a Plan just for her, please contact us for some more info and recommendations! Good luck Adriana!!
Most experts recommend starting when your baby is between 4 and 6 months old. By about 4 months, babies have typically started to develop a regular sleep-wake cycle and dropped most of their night feedings. These are signs they may be ready to start sleep training. Many babies this age are also developmentally able to sleep for long stretches at night.
"By the time your baby is 3 months old and has developed a fairly predictable 24-hour pattern, it becomes more important for you to provide increasingly consistent structure. If you do your best to establish a reasonable and consistent daily routine and keep to it as much as possible, then it is likely that your child will continue to develop good patterns. If instead you allow the times of your child's feedings, playtimes, baths, and other activities to change constantly, chances are his sleep will become irregular as well."
This is considered a ‘cry’ method of sleep training. This technique entails allowing your baby to cry while checking on him at intervals. The goal here is to reassure him every so often that you are nearby and to reassure yourself that he is okay. When you go to check on your baby, you are not “supposed” to pick him up nor engage him much, but simply reassure him using your voice and a loving pat for 2-3 minutes, tops (watch the clock!). With this sleep training method, the goal is NOT to help baby fall asleep – that is what he is learning to do on his own! Instead, the idea is that he falls asleep on his own, in the same “environment” in which he will awaken periodically throughout the night. The knowledge of how to fall asleep unassisted at bedtime will pave the way for him/her to go BACK to sleep throughout the night. Over time, you gradually increase the amount of time between your ‘checks’. See a more detailed step-by-step explanation of this method here: The Ferber Method

"A young child cannot yet understand what is best for him, and he may cry if he does not get what he wants," Ferber writes. "If he wanted to play with a sharp knife, you would not give it to him no matter how hard he cried, and you would not feel guilty or worry about psychological consequences. Poor sleep patterns are also harmful for your child and it is your job to correct them."
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As we previously mentioned, introducing healthy sleep habits and routines as early as possible will help significantly during sleep training. If you haven’t already, try to establish a bedtime routine before you start sleep training baby — this will encourage healthy baby sleep patterns. This should be a series of soothing activities that help to calm your baby and prepare them for sleep - things like swaddling, bathing, and rocking usually work well, but every family’s routine will look different.
Raising a healthy sleeper starts with a consistent bedtime routine. You can start enforcing this when your baby is roughly six weeks old. At the same time every night, read a book together, sing songs, and feed your baby before putting him or her into the crib. It may also help to get your child up at the same time every morning and put him down for naps at regular times.

Thank you for your comment! We agree, and we think most parents do, that cry-it-out is a last resort, and we always recommend trying a gentle sleep coaching method first. That said, the research on cry-it-out is that, done correctly and not as a replacement for parenting your baby, it is not harmful, and can indeed be beneficial when you consider the damage that lack of sleep can do to a baby’s overall health and well-being. We have an article with further information about our philosophy on cry-it-out here: https://www.babysleepsite.com/sleep-training/cry-it-out-age/
It’s difficult if not impossible to sleep train if you share a bed with your child. There’s good evidence that bed sharing is associated with sleep difficulties in infancy and beyond. One survey of more than 50,000 Norwegian families showed that bed sharing was associated with more frequent night awakenings at both 6 and 18 months. Switching your child to sleeping independently for a week or so prior to sleep training can be helpful as you can soothe your child to sleep in the new sleeping environment first.
Melissa incorporated the Zen Sack into her bedtime routine with Theo because the gently weighted center of the Zen Sack helps to calm babies and aids in teaching them to self soothe- which is what sleep training is all about! The gently weighted center actually mimics your touch offering comfort and security to your baby, even when you’re not there. The extra bit of pressure from the Zen Sack has been shown to help babies feel calm and fall back to sleep easier...super helpful for starting sleep training!

There’s an awful lot of information on how to sleep train out there, leaving most parents confused, frustrated, and still wondering what sleep training is and how to do it. In this article, we’ve rounded up all the facts from real moms and professional sleep consultants on what sleep training is, how to do it, and how to decide if it’s right for you.


Thank you for your comment – I’m so glad to hear that the article was helpful for you! Generally we suggest trying for about an hour before giving up, but it can depend on the baby’s age and personality. We do have an article all about nap training that may help you here, as well: https://www.babysleepsite.com/baby-naps-2/nap-training-how-and-when/
"My 4-and-a-half-month-old will only sleep through the night if we do everything the experts say not to do. She must be nursed to sleep unless we want to see her turn purple and cry for 45 minutes or more. She's like a wind-up doll when she starts and never settles until she's comforted, and she's been that way from the beginning. It really became a matter of, "Do we want to sleep, or do we want to do what the books say?" If she's comforted and put down sleeping, she sleeps eight to 10 hours. To all you parents out there who have a baby like mine, do not despair – just do what works for you."
In clinic, I help parents with their children’s sleep problems. But in my own home, I found it challenging to apply the techniques I recommended to others. What seems obvious in a brightly-lit exam room is harder to follow at 2 a.m. Like many pediatricians do with their own children, I elected to try extinction sleep training, which involves letting a child cry in order to learn to soothe himself to sleep on his own. Night one was relatively easy, but night two left my wife in tears and me feeling like a heel. Things improved on night three, and our son scarcely cried on night four. By the end of the week, he was sleeping through the night again.
There are many different sleep training methods to choose from, but the most common methods are one of or a variation of one the five we've explained below. You might find that one of these methods sounds like it would be a perfect match for you, OR you might find aspects from each plan that you like. Just like Melissa said, don't feel like you need to stick to a certain method 100%. Make the plan work for you! 
Do your research! There is a lot of information about there about sleep training, and much of it is controversial or contradicting. However, just like making any important decision, your choice to sleep train (or not sleep train) should be informed by your own reading, research, and inferences. Furthermore, there are many different methods of sleep training (which we’ll cover in this article as well) and you’ll need to decide which method is right for you.

McKenna advises against sleep training and encouraging babies to sleep for long stretches at night. Instead, he urges parents to follow their babies' cues and allow them to wake frequently through the night to feed. A strong advocate for co-sleeping, McKenna encourages bed-sharing and other co-sleeping arrangements, such as putting the baby in a bassinet or crib at the parent's bedside, while also following standard SIDS safety precautions – for example, making sure there are no blankets or stuffed animals around him.

"I have a 6-month-old who has refused to sleep longer than 30 to 90 minutes day or night since he was born! I've tried everything out there except CIO. He's strictly breastfed and relies on that or rocking to get to sleep. He doesn't know how to soothe himself to sleep, and he naps for only 15 minutes. I'm severely sleep deprived. I don't have the heart for CIO, but I think I'll try the revised method where you pat him down and reassure him lovingly while allowing him the opportunity to comfort himself. He's been co-sleeping since day one, and it's going to be tough, but I'm at my wits' end and cannot function."


"My 5-month-old was waking every two hours at night. I was so tired I wanted to die. I finally caved in, put in earplugs, and let him cry it out – which he did, all night! But then, something amazing happened the next night: He slept a full 12 hours and awoke rosy and cheerful. It's been that way ever since, and he's even a better napper now. I know that it is hard to listen to your precious little one cry, but a sleep-deprived, miserable mom and baby is a terrible thing too."
Crying isn't the goal of this sleep training method, but advocates say it's often an inevitable side effect as your baby adjusts to sleeping on his own. They say the short-term pain of a few tears is far outweighed by the long-term advantages: A child who goes to sleep easily and happily on his own, and parents who can count on a good night's rest.
"As a last resort, I broke down and gave Ferber a try. It's been two and a half weeks, and I see no real improvement. My daughter goes down faster at night, but the crying breaks my heart. I miss snuggling with her. She still wakes up every 30 to 90 minutes after her first two-hour stretch. She shrieks when it's time for a nap. I broke down and nursed her to sleep for her afternoon nap because I couldn't stand to see her so exhausted."
"I have a 6-month-old who has refused to sleep longer than 30 to 90 minutes day or night since he was born! I've tried everything out there except CIO. He's strictly breastfed and relies on that or rocking to get to sleep. He doesn't know how to soothe himself to sleep, and he naps for only 15 minutes. I'm severely sleep deprived. I don't have the heart for CIO, but I think I'll try the revised method where you pat him down and reassure him lovingly while allowing him the opportunity to comfort himself. He's been co-sleeping since day one, and it's going to be tough, but I'm at my wits' end and cannot function."
"No Tears" Techniques: Just as some parents and experts believe that it is harmless to allow an older baby to cry for set periods of time, others prefer sleep-training methods that gradually teach the baby to fall asleep without Mom or Dad’s help. For example, one "no tears" method involves sitting in a chair next to the crib while the baby falls asleep, and then, each night, moving the chair farther from the crib until it's in the doorway—and then, finally, outside the room.

Once you launch your plan, stick to it. Parents who've been through sleep training agree that consistency is the key. Unless you realize that your child simply isn't physically or emotionally ready and you decide to put the program on hold for a while, follow through with it for a couple of weeks. When your baby wakes you up at 2 a.m., you may be tempted to give in and hold or rock him, but if you do, your hard work will be wasted and you'll have to start over from square one.
That’s right! Your baby of course needs to be ready - but before they are, YOU need to be ready too. Sleep training requires a commitment from parents. You’ll also want to be sure you’re logistically ready for sleep training, as it’s best to start when you don’t have anything that might disrupt the training coming in the near future, such as a vacation or trip.
Also on the far end of the cry it out spectrum is the Baby Wise approach by pediatrician Robert Bucknam and co-author Gary Ezzo. In their book On Becoming Baby Wise, they advise against feeding babies on demand around the clock and instead advocate a parent-led feeding, wake, and sleep schedule. Their method involves following a strict nap and sleep schedule and putting your baby down awake so she can learn to soothe herself to sleep. This means there will be some crying, especially at first, as your baby adjusts to your schedule.
"My son is 6 months old and finally goes to sleep without a struggle! We thought the Ferber method was mean and that alternatives would be better. So we tried it all – Baby Whisperer, No-Cry Sleep Solution, Babywise, etc. None of it worked. Our son is an otherwise happy little guy, but every night and every nap was a battle. We'd spend hours trying to get him to sleep. We delayed trying Ferber until we'd tried everything else unsuccessfully. It worked after the first night! He wakes up better rested and happier (as do we)."
"My 3-month-old doesn't sleep through the night, and it's fine with me. I keep her in her crib or a bassinet until her 3 a.m. feeding, and then she joins my husband and me until we get up for work. She won't go in her crib unless she's already asleep, usually from nursing and rocking, but she'll fall asleep in her bassinet beside our bed. She's happy and we're happy, and even if it goes against the wisdom of the experts, it's working for us."
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