Contents
- Understanding the “Cry It Out” Method in Infant Sleep Training
- The Scientific Perspective: New Research on Crying It Out
- Critiques and Limitations of Cry It Out Studies
- Attachment Theory vs. Behavioral Approaches
- The Evolution of Infant Crying and Parental Responses
- Different Approaches to Sleep Training and Self-Soothing
- Factors to Consider Before Implementing Cry It Out
- Debunking Common Misconceptions About Crying It Out
- The Role of Parental Intuition and Adaptability
- When to Seek Professional Guidance for Infant Sleep
- Conclusion
Deciding whether to Should you let babies cry it out is one of the most debated and emotionally charged topics for new parents, often leaving them feeling overwhelmed and uncertain. This approach to infant sleep training, where parents allow their baby to self-settle without immediate intervention, sparks intense discussion regarding its impact on a child’s well-being and parental attachment theory. Understanding the nuances of this method, including the scientific research on infant sleep training, the benefits of baby’s self-soothing, and its potential effects on behavioral development and parental stress, is crucial for informed decision-making. This guide aims to provide a balanced, evidence-based perspective for families navigating this significant parenting choice.
Understanding the “Cry It Out” Method in Infant Sleep Training
The “cry it out” (CIO) method, often referred to as extinction or graduated extinction, is a sleep training technique designed to help infants learn to fall asleep independently and self-soothe. It involves allowing a baby to cry for defined periods before parental intervention. This approach aims to break the cycle where a baby relies on external cues, such as being rocked or fed, to initiate sleep, thereby fostering greater sleep independence.This method has roots in behavioral psychology, suggesting that if a baby’s crying does not consistently lead to parental attention, the crying behavior will eventually decrease. Proponents believe it teaches valuable self-soothing skills, leading to improved sleep quality for both the infant and the parents. However, the emotional implications for parents listening to their baby cry are undeniable, making it a highly personal and often difficult decision.
The Scientific Perspective: New Research on Crying It Out
Recent research has reignited the debate surrounding the effectiveness and safety of letting babies cry it out. A significant study from the University of Warwick, co-authored by Prof. Dieter Wolke, investigated the long-term impacts of this practice. The findings suggest that allowing infants to cry it out does not negatively affect their behavioral development or their attachment to their mother.
This research, which followed 178 babies and their mothers in the UK from birth to 18 months, offers a different perspective from traditional attachment theory. Mothers reported how often they let their baby cry it out at various stages. The study observed that while mothers rarely used the method with newborns, it became more common as babies grew, with approximately two-thirds of mothers using it by 18 months.
The study indicated potential benefits, noting that infants who were allowed to cry a few times as newborns cried for shorter durations at 18 months. This suggests that the practice might help babies develop vital self-regulation abilities. The researchers emphasized that their findings neither recommend nor condemn the method but rather suggest parents should not excessively worry about their chosen approach.
Critiques and Limitations of Cry It Out Studies
Despite the reassuring findings from studies like Wolke’s, it is crucial to acknowledge the limitations and criticisms. Amy Brown, a professor of child public health at Swansea University, highlights important caveats regarding such research. She points out that few mothers in the study frequently left their infants to cry it out until 18 months, limiting the generalizability of the findings to consistent practitioners of the method.
Furthermore, the study did not delve into the duration for which parents left their child to cry or assess the perceived helpfulness of the method from the parents’ perspective. This omission is significant, as the emotional distress experienced by many mothers when their baby cries for extended periods is a critical factor in their overall well-being and ability to implement sleep training consistently. The reliance on self-reporting by mothers rather than direct observation of crying episodes introduces a degree of subjectivity.
Brown argues that the study does not definitively prove the beneficial nature of controlled crying. It merely suggests an absence of harm under specific, limited conditions. The complexity of infant sleep and parental responses means that no single study can fully capture the myriad factors influencing a child’s development and attachment. Therefore, a cautious interpretation of these findings is warranted.
Attachment Theory vs. Behavioral Approaches
The debate around Should you let babies cry it out is deeply rooted in the contrast between attachment theory and behavioral approaches to infant care. Attachment theory, popularized by figures like John Bowlby and Mary Ainsworth, posits that a secure attachment between an infant and primary caregiver is crucial for healthy social and emotional development. Proponents of this theory argue that immediate responsiveness to an infant’s cries is vital for building trust and security.
From this perspective, leaving an infant to cry could potentially damage the developing bond between parent and child and elevate the infant’s stress levels. The idea is that an infant’s cry is a request for help, and consistent reassurance builds a foundation of security. This contrasts sharply with the behavioral view, which suggests that responding to every cry might reinforce crying behavior.
However, modern interpretations often seek a middle ground. Many pediatric experts agree that while responsiveness is important, there is also a need for infants to develop self-regulation skills. The challenge lies in balancing these two essential aspects of infant development. It is a nuanced discussion that acknowledges the emotional and developmental needs of both the child and the parent.
The Evolution of Infant Crying and Parental Responses
Stephen Scott, a professor of child health and behavior at King’s College, offers an evolutionary perspective on the “cry it out” debate. He suggests that from an evolutionary standpoint, it is highly improbable that an infant left to cry for a short period would suffer long-term damage. In ancestral environments, immediate parental attention was not always feasible due to survival demands.
Scott argues that human children are inherently resilient, and a species that was easily damaged by periods of crying would not have survived and thrived. This perspective suggests that limited periods of crying might be a natural part of a child’s development, fostering resilience rather than fragility. It reframes crying not just as a distress signal but also as a developmental tool.
This evolutionary viewpoint aligns with the idea that parents often intuitively know how to respond to their infants. Prof. Dieter Wolke’s study also touched upon this, suggesting that parents and children adapt over time. While crying is a baby’s primary mode of communication for needs like feeding or safety, allowing a few minutes of crying might encourage them to develop self-soothing strategies, particularly when basic needs have already been met.
Different Approaches to Sleep Training and Self-Soothing
When considering Should you let babies cry it out, parents encounter various sleep training methodologies, each with distinct philosophies and implementation strategies. The “cry it out” method, or extinction, involves minimal or no parental intervention after a set bedtime, allowing the baby to cry until they fall asleep. This is often the most controversial due to the intensity of crying involved.
A gentler alternative is the “graduated extinction” or Ferber method, which involves checking on the baby at increasing intervals. This approach acknowledges the baby’s distress while still encouraging self-soothing. Parents provide brief, reassuring checks without picking up the baby, gradually extending the time between visits. This can feel more manageable for parents who are uncomfortable with full extinction.
Other methods, often described as “no-cry” or “fading” techniques, involve gradually reducing parental presence or intervention. These might include pick-up/put-down methods, where parents comfort a crying baby briefly before putting them back down awake, or sleep lady shuffle, where parents gradually move further away from the crib. These methods typically involve less crying but can take longer to achieve results.
The choice of method often depends on the baby’s temperament, the parents’ comfort level, and their family’s specific circumstances. It is important to remember that there is no one-size-fits-all solution for infant sleep. What works for one family might not work for another, emphasizing the need for individualized approaches.
Factors to Consider Before Implementing Cry It Out
Before deciding whether to Should you let babies cry it out, several critical factors must be carefully considered. Firstly, the baby’s age and developmental readiness are paramount. Most pediatricians recommend waiting until a baby is at least 4 to 6 months old before attempting any formal sleep training, as younger infants may not have developed the physiological capacity for self-soothing or regular sleep patterns.
Secondly, ensuring the baby is healthy and well-fed is crucial. Crying could be a sign of hunger, discomfort, or an underlying medical issue, such as reflux or an ear infection. Always rule out any physical discomfort or illness before attributing crying solely to a need for sleep training. A visit to the pediatrician can provide peace of mind in this regard.
Parental comfort levels and consistency are also vital. Implementing any sleep training method requires significant commitment and the ability to tolerate periods of crying. If parents are too distressed or inconsistent in their approach, the method is less likely to be effective and can cause more stress for everyone involved. Open communication between partners is essential to ensure a united front.
Lastly, a baby’s individual temperament plays a significant role. Some babies are naturally more adaptable and resilient, while others may be more sensitive and prone to extended periods of distress. Understanding your child’s unique personality can help in choosing the most appropriate sleep training strategy. A flexible approach that can be adjusted based on the baby’s response is often the most successful.
Debunking Common Misconceptions About Crying It Out
There are numerous misconceptions surrounding the “cry it out” method that can add to parental anxiety. One common fear is that allowing a baby to cry will lead to permanent psychological damage or emotional scarring. Current research, including studies like Wolke’s, largely refutes this, suggesting no long-term negative impact on attachment or behavioral development when implemented appropriately.
Another misconception is that CIO is a sign of parental neglect or a lack of love. In reality, parents who choose this method often do so out of love, hoping to teach their child a vital life skill: independent sleep. They are typically dedicated caregivers seeking the best for their child’s overall well-being and their own family’s mental health, which can be significantly impacted by chronic sleep deprivation.
Some believe that CIO will suppress a baby’s ability to express emotions. Instead, the goal is to help babies learn to self-regulate and cope with minor frustrations, rather than to silence their needs. Crying remains a crucial form of communication, and parents are still expected to respond to cries indicating genuine need, such as hunger, pain, or discomfort.
Finally, the idea that CIO means letting a baby cry indefinitely without any checks is often misunderstood. While true extinction involves no checks, many parents opt for modified versions that incorporate timed checks to reassure both the baby and themselves. Clarifying these misconceptions helps parents make more informed decisions, free from undue guilt or fear.
The Role of Parental Intuition and Adaptability
The discussion around Should you let babies cry it out often overlooks the crucial role of parental intuition and adaptability. Prof. Dieter Wolke highlighted that parents intuitively know how best to respond to their infant, and both parents and children adapt over time. This suggests that a rigid adherence to any single method might be less effective than a responsive, evolving approach.
Parental intuition involves observing the baby’s cues, understanding their individual temperament, and recognizing when a cry signifies a genuine need versus a protest against sleep. This dynamic interaction allows parents to adjust their strategies, whether it means offering immediate comfort or providing space for self-soothing. It is about finding a balance that works uniquely for each family.
Adaptability means being flexible and willing to change methods if something isn’t working or if the baby’s needs evolve. A method that works at 6 months might need modification at 12 months. Trusting one’s instincts and being open to expert advice, while filtering it through the lens of one’s own child, fosters a more effective and less stressful parenting journey.
Dr. Charlotte Faircloth, an expert on parenting from University College London, emphasizes this point, suggesting that more credit should be given to parents in trusting that they will find an approach that suits them and their families. This empowers parents to be the ultimate decision-makers, guided by their unique bond with their child and a deep understanding of their child’s needs.
When to Seek Professional Guidance for Infant Sleep
While parents are encouraged to trust their intuition regarding Should you let babies cry it out, there are instances where seeking professional guidance for infant sleep issues becomes essential. Persistent sleep challenges, such as a baby consistently waking up every hour or refusing to nap, despite consistent efforts at various sleep training methods, warrant a consultation with a pediatrician or a certified sleep consultant.
A medical professional can rule out underlying health conditions that might be disrupting sleep, such as sleep apnea, allergies, or chronic pain. They can also assess the baby’s overall development and provide tailored advice based on their specific needs. Sleep consultants, on the other hand, offer specialized behavioral strategies and personalized support, helping families implement effective routines.
Additionally, if parental mental health is significantly impacted by severe sleep deprivation, or if the stress of sleep training is overwhelming, seeking help is crucial. Prolonged sleep deprivation can lead to parental burnout, depression, and anxiety, affecting the entire family dynamic. Support groups, therapists, or counselors can provide emotional support and coping strategies.
Ultimately, professional guidance ensures that sleep training is approached safely and effectively, addressing both the baby’s needs and the family’s well-being. It provides an objective perspective and evidence-based solutions when parents feel exhausted or unsure.
Conclusion
The question of Should you let babies cry it out is complex, touching upon deeply held beliefs about parenting, attachment, and child development. Recent scientific research suggests that, when implemented thoughtfully and under appropriate conditions, allowing babies to cry it out may not cause harm to attachment or behavioral development and could even foster self-soothing skills. However, it is equally important to acknowledge the limitations of these studies and the valid concerns raised by attachment theory. Ultimately, the decision rests with individual parents, considering their baby’s unique temperament, developmental readiness, and their own comfort levels. Responsive parenting, informed by scientific understanding and guided by intuition, remains the most empowering approach, ensuring that families can navigate sleep challenges effectively and nurture healthy, secure relationships.
Last Updated on October 13, 2025 by Dr.BaBies

Dr. BaBies is our expert consultant focusing on the health and well-being aspects of early childhood screen exposure. Holding a doctorate in Developmental Health, Dr. BaBies specializes in understanding the impact of visual and auditory stimuli on a baby’s developing nervous system and sleep patterns.




