
Sleep training is a highly debated topic among parents and experts. The cry-it-out (CIO) method is a sleep-training strategy that involves letting a baby cry until they fall asleep without any intervention from their caregiver. While some parents swear by this method, claiming it's the only way they and their babies get any sleep, others argue that it is harmful to the child's well-being. The decision to use the CIO method depends on various factors, including the age and weight of the baby, the caregiver's comfort level, and the baby's temperament. While some sources suggest waiting until the baby is at least 4 months old before attempting CIO, others recommend starting as early as 5-6 weeks of age. It is important to note that crying is a natural form of communication for babies, and short periods of crying can even be beneficial, helping them process their day and settle down. However, it is also crucial to trust one's instincts and choose a more hands-on approach if the CIO method doesn't feel right for the caregiver or the baby.
| Characteristics | Values |
|---|---|
| Cry-it-out method | Let the child cry for a period of time before providing comfort or picking them up |
| Controlled crying | Provide comfort at scheduled intervals, e.g. 2, 4, 6, and 8 minutes, increasing over time |
| Extinction | Place the baby in their crib and let them cry until they fall asleep; the parent may remain nearby or outside the room |
| Graduated extinction | Allow the baby to cry for gradually increasing periods before providing comfort |
| Full extinction | Allow the baby to cry until they fall asleep without any parental intervention or checks |
| Age recommendations | The American Academy of Pediatrics (AAP) recommends waiting until the baby is at least 4 months old; some sources suggest waiting until 5-6 months old for greater effectiveness |
| Weight recommendations | Some methods recommend waiting until the baby weighs at least 11 or 14 pounds |
| Benefits | Can help babies and parents get more sleep; may reduce the probability of parent-reported sleep problems |
| Criticisms | Some parents say it is harmful; may not be suitable for newborns or babies with health conditions |
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What You'll Learn
- The cry-it-out method is one of many sleep-training strategies
- Crying can help babies process an active day
- It's recommended to wait until your baby is at least 4 months old before sleep training
- Controlled crying involves comforting your baby at scheduled intervals
- Crying could indicate your baby needs something or wants to be left alone

The cry-it-out method is one of many sleep-training strategies
The cry-it-out method, also known as the extinction method, is one of several sleep-training techniques that can help babies learn to fall asleep independently. This method involves placing the baby in their crib and leaving them to calm themselves and fall asleep without intervention. It is designed to teach babies self-soothing techniques and reduce their reliance on parental responses to fall asleep. While some parents find success with this method, others may prefer gentler approaches.
The cry-it-out method is often associated with the idea of letting a baby "cry it out" until they fall asleep. However, it is important to note that this method is not about ignoring the baby's needs or causing unnecessary distress. Instead, it is about providing an opportunity for the baby to develop self-soothing skills. Before attempting any form of sleep training, it is crucial to ensure that the baby's needs are met, and they have a calming and consistent bedtime routine.
There are different variations of the cry-it-out method, including total extinction and gradual extinction. Total extinction involves putting the baby in their sleep space while they are still awake and leaving the room without returning until the next day. On the other hand, gradual extinction, also known as the Ferber method, involves leaving the baby in their crib and returning for brief visits at gradually increasing intervals. For example, starting with a visit after 3 minutes of crying, keeping the visits 1-2 minutes long, and gradually increasing the time between visits.
The cry-it-out method is not suitable for every family, and there is no one-size-fits-all solution for sleep training. Some parents and healthcare providers may find the method too rigid or stressful for both parents and babies. It is essential to consider the family's preferences, the baby's temperament, and their unique circumstances when choosing a sleep-training approach. While some parents may prioritize quicker results, others may opt for more gradual and gentle methods that align with their parenting style.
It is worth noting that there is no evidence that the cry-it-out method causes long-term harm to babies. Studies have shown that babies who underwent sleep training using graduated extinction methods exhibited increased security and attachment. Additionally, there were no adverse secondary effects identified in infants who participated in sleep interventions. These infants were found to be more secure, predictable, and less irritable after treatment.
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Crying can help babies process an active day
It is normal for babies to cry for 2–3 hours a day for the first 6 weeks of their lives. During the first 3 months, they cry more than at any other time. Crying is how babies communicate, and it is important to understand what they are trying to say.
Babies may cry because they are hungry, uncomfortable, or in need of a diaper change. They may also cry because they are tired, overwhelmed, or seeking attention. In some cases, babies may cry due to medical reasons, such as a fever or colic.
It is important for parents to respond to their baby's cries and try to meet their needs. This can include comforting and soothing the baby through various methods, such as rocking, singing, or offering a pacifier. However, it is also important for parents to take care of themselves and seek help if needed.
Some parents may worry about letting their baby cry too much, especially when it comes to sleep training. While some swear by the "cry-it-out" method, others believe it is harmful. However, it's important to note that sleep training does not have to involve letting your baby cry alone. In fact, there are many gentle sleep training approaches that can be effective, such as gradually increasing the time before checking on the baby or shifting the baby's bedtime to a later time.
Overall, crying is a normal and important part of a baby's development. It helps them communicate their needs and process their emotions. While it can be challenging for parents, responding to their cries and providing comfort and support can help babies feel secure and loved.
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It's recommended to wait until your baby is at least 4 months old before sleep training
It is generally recommended to wait until your baby is at least 4 months old before sleep training. This is because, before this age, a baby's circadian rhythm is still maturing, and they are working on understanding the difference between day and night. During this time, feeding takes priority over sleep, and a baby's sleep is very disorganized, making sleep training unnecessary and ineffective.
The American Academy of Pediatrics (AAP) recommends waiting until your baby is at least 4 months old before starting sleep training, including the cry-it-out method. Some sources suggest that the cry-it-out method should not be used on newborns, and that it is best to start no earlier than when a baby is 4 months old. This is because, by this age, a baby's natural sleep cycle will start to even out, and they will begin to adopt a more regular sleep pattern.
Research suggests that cry-it-out methods may be ineffective before 6 months old, and that the effects of CIO are most lasting after this age. Some sources suggest that CIO can be started as early as 3 to 4 months, or even younger, but this is not recommended by the AAP. It is important to note that there is no strict formula for sleep training that works for every parent and baby, and the method chosen should depend on what the parent is comfortable with.
Before starting sleep training, it is important to establish good sleep fundamentals and a consistent bedtime routine. This can include things like a predictable bedtime routine, singing songs, and playing games. It is also important to remember that crying is a natural form of communication for babies and can help them process their day and settle down before sleep. However, if a baby seems distressed or unwell, it is recommended to stop CIO training and address their needs.
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Controlled crying involves comforting your baby at scheduled intervals
Controlled crying, also known as controlled comforting, is a sleep training method where caregivers allow a young child to fuss or cry for gradually increasing increments of time before returning to comfort them. The goal is to encourage the child to learn to self-soothe and fall asleep on their own. This method is not recommended for children under 6 months of age and may not be effective if a child is experiencing illness or other major changes such as teething or developmental leaps. It is important to ensure that the child is not hungry, thirsty, ill, or overwrought before beginning the controlled crying process.
The controlled crying process typically involves the following steps: After your usual bedtime routine, put your baby in their cot, say goodnight, and then leave the room while they are still awake. If they cry, wait for a brief period of time, such as 2 minutes, before going back into the room to comfort them. Gradually increase the time between comforting intervals, such as by adding 2 minutes to each interval. Continue to use this process consistently, as your child should learn to self-soothe and fall asleep more quickly over time.
It is important to note that controlled crying may be emotionally difficult for parents and caregivers, and it is not a method that is suitable for every family. Some people believe that not picking up a crying baby may cause them to feel confused or abandoned, which may have a negative impact later in life. Additionally, the "cry-it-out" method, which is sometimes associated with controlled crying, has been criticized by some experts as being too harsh. However, studies have shown that gentler sleep training approaches can also be effective, and it is important for parents to find an approach that aligns with their own parenting styles and philosophies.
While controlled crying can be a successful sleep training method for some families, it is not recommended for children under 6 months old. If you are considering sleep training for a 2-month-old baby, it is important to consult with a healthcare professional and prioritize the baby's overall health and well-being.
Overall, controlled crying involves comforting your baby at scheduled intervals, gradually increasing the time between comfortings to encourage self-soothing and independent sleep. It is important to use this method appropriately and ensure it aligns with your parenting style and the child's needs.
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Crying could indicate your baby needs something or wants to be left alone
Crying is a natural form of communication for babies. It can help them process an active day, settle down, and fall asleep. However, it is essential to understand that crying could indicate that your baby needs something or wants to be left alone.
Some parents swear by the cry-it-out method, believing it is the only way they and their babies can get any sleep. On the other hand, some parents argue that letting a baby cry is harmful. While there is no strict formula that works for every parent and baby, it is essential to remember that crying could mean that your baby needs something.
One parent shared that they figured out that one type of crying meant their baby needed attention, while another type meant that their baby wanted to be left alone. This highlights the importance of understanding your baby's cries and responding accordingly.
It is generally recommended to wait until your baby is at least 16 weeks old and weighs at least 14 pounds before starting sleep training, including the cry-it-out method. This is because, before four months of age, a baby's circadian rhythm is still maturing, and they are working on understanding the difference between day and night. Additionally, feeding still takes priority over sleep during this early stage.
If you choose to use the cry-it-out method, it is important to be consistent and patient. You can start by placing your baby in their crib and soothing them by patting or rubbing their back until they stop crying. Then, leave the room, and if your baby begins crying again, check on them after waiting for a few minutes. Gradually increase the time between checking on them, but always respond if your baby sounds in pain or needs something. Remember, crying could be a sign that your baby needs something, so it is important to be attentive to their needs.
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Frequently asked questions
No, it is not recommended to let newborns or babies under 4 months old cry it out. At this age, their circadian rhythm is still maturing, and they are working on understanding the difference between day and night.
Pediatricians advise waiting until your baby is at least 16 weeks old and weighs 14 pounds before starting sleep training, including the cry-it-out method. Some sources suggest waiting until your baby is 6 months old as they may not have established sleep cycles before then.
The cry-it-out method involves preparing your baby for the night and letting them cry themselves to sleep without any intervention from you unless they need to be fed, changed, or are in an unsafe situation. The amount of time you choose to let your baby cry will depend on the method you choose and your comfort level.











































