If you have ever held your baby at 2:00 a.m. while wondering why everyone else’s child seems to sleep, I want you to hear this first:
You are not failing, and your baby is not the only one awake.
When you are living in short stretches of sleep, it can seem as though every other family has discovered a secret you missed. Social media posts, milestone charts, and casual conversations can make normal infant waking feel like evidence that something has gone wrong.
The statistics tell a much kinder story.
In two large birth cohorts of healthy, full-term babies, parents reported sleep problems in approximately 22% to 39% of children between 3 and 24 months, depending on age and cohort. The highest reported rate, 39.4%, occurred at 8 months.¹ In another study, 38% of 6-month-olds were not yet sleeping six uninterrupted hours, and more than half were not sleeping eight uninterrupted hours.²
In other words, waking is common. Struggling is common. Needing help is common, too.
This guide brings together some of the strongest available baby sleep statistics so you can understand what may be developmentally normal, what may deserve a closer look, and what current research says about behavioral sleep support.
Statistics describe groups. They do not define your individual baby or determine what your family must do.
The quick answer: Many babies continue to wake during the first year. In research, “sleeping through the night” is typically defined as an uninterrupted six- to eight-hour stretch of sleep; not necessarily sleeping from 7:00 p.m. to 7:00 a.m. While this is the standard definition used in studies, it doesn’t always reflect what most parents mean when they ask if their baby is sleeping through the night. In my practice, I define sleeping through the night as a much more consistent 10- to 12-hour stretch with no feeds or wake-ups requiring parental assistance. It’s also important to remember that sleeping through the night is not a developmental deadline. Every baby develops at their own pace, and there are many factors that influence when they begin sleeping longer stretches.
Baby Sleep Statistics at a Glance
- Babies 4 to 12 months old should generally receive 12 to 16 total hours of sleep per 24 hours, including naps, according to American Academy of Sleep Medicine guidance endorsed by the American Academy of Pediatrics.³
- In large Finnish birth cohorts, babies averaged approximately 2.1 to 2.5 night wakings during the first year.¹
- In those cohorts, only 16.5% of 3-month-olds and 22.3% of 8-month-olds were reported to sleep through the night under the study’s strict no-waking measure.¹
- In a Canadian cohort, 38% of 6-month-olds did not sleep six uninterrupted hours, while 57% did not sleep eight uninterrupted hours. At 12 months, the figures were 28% and 43%, respectively.²
- Parent-reported sleep problems ranged from 21.8% to 39.4% between 3 and 24 months in one large study.¹
- Reviews commonly place parent-reported infant sleep problems at approximately 20% to 30%, although findings vary according to age, culture, definitions, and measurement methods.⁴
- Behavioral sleep interventions can reduce parent-reported sleep problems and may improve parental mood, although objective measurements show more modest and mixed effects on babies’ actual awakenings.⁵⁻⁹
- The best available long-term follow-up studies have not found evidence of lasting harm to attachment, emotional development, behavior, stress regulation, or the parent-child relationship.⁶˒⁷
How Common Are Baby Sleep Problems?
Night waking and a sleep problem are not the same thing
A baby can wake at night without having a sleep disorder.
Brief arousals are a completely normal part of sleep for both children and adults. In fact, we all naturally wake 4–6 times each night as we transition between sleep cycles. The difference is that most adults briefly wake, adjust their position, and fall right back asleep without even remembering it the next morning. As babies develop, what changes isn’t whether they wake, but whether they need to signal for help, feed, or rely on hands-on assistance to get back to sleep. The goal isn’t to eliminate normal nighttime awakenings; it’s to help your baby develop the skills to return to sleep independently so everyone enjoys a more restful night.
A “sleep problem” may also mean different things in different studies:
- A parent describes sleep as a problem.
- A baby wakes more than a specified number of times.
- Settling takes longer than a study’s cutoff.
- The baby spends a prolonged period awake overnight.
- Total sleep duration falls outside an age-based reference range.
- The sleep pattern causes substantial distress or disruption for the family.
This is one reason infant sleep statistics can sometimes appear contradictory. Researchers may be measuring entirely different outcomes. One study may define “sleeping through the night” as a six-hour stretch, while another focuses on the number of night wakings or whether a baby requires parental intervention. I also always tell families that a child’s sleep is only a problem if it’s negatively affecting the parents or the child. Every family has a different threshold for what they can comfortably manage. Some parents feel well-rested waking once or twice a night, while others are struggling after a single wake-up. Neither is right or wrong. The goal isn’t to meet a universal definition of “good sleep,” but to find a sleep routine that is healthy, sustainable, and works well for your family.
The large Finnish study is especially useful because it followed healthy babies at several ages. Parents reported sleep problems in 30.7% at 6 months, 39.4% at 8 months, 27.8% at 12 months, and 21.8% at 24 months across the two cohorts.¹
At the same time, the average baby continued to wake multiple times during the first year.
Normal waking and family distress can overlap, but they are not interchangeable.
How many babies sleep through the night?
There is no single honest percentage until we define the phrase.
In research, “sleeping through the night” may mean five, six, or eight uninterrupted hours. A parent may mean that the baby does not call for help. Someone else may mean a full 11- or 12-hour night without feeding.
These definitions produce very different answers.
A 2018 study published in Pediatrics followed 388 typically developing infants. At 6 months:
- 62.4% slept at least six uninterrupted hours, meaning 37.6% did not.
- 43% slept at least eight uninterrupted hours, meaning 57% did not.
At 12 months:
- 72.1% slept at least six uninterrupted hours, meaning 27.9% did not.
- 56.6% slept at least eight uninterrupted hours, meaning 43.4% did not.²
The researchers found no association between not sleeping through at 6 or 12 months and later mental or psychomotor development.
A baby who has not reached an arbitrary overnight stretch is not automatically behind.
What normal infant sleep can look like by age
Newborn to 3 months
Newborn sleep is distributed across the day and night, and waking for feeding is expected. Circadian rhythms are still developing.
This is generally a season for responsive care, safe sleep, feeding support, and gentle rhythms rather than rigid schedules or formal behavioral sleep training.
4 to 6 months
Sleep gradually becomes more organized, but variability remains enormous.
The American Academy of Sleep Medicine recommendation begins at 4 months: 12 to 16 hours of total sleep in 24 hours, including naps.³
Some babies begin sleeping longer stretches during this period. Many do not. Feeding, growth, and medical guidance should come from the child’s pediatric clinician.
6 to 12 months
Longer overnight stretches become more common, but waking remains normal.
The Finnish cohorts averaged approximately two or more wakings per night during the first year.¹ New motor skills, separation awareness, illness, travel, changing feeding needs, and nap transitions can temporarily reshape sleep.
12 to 24 months
Night waking generally declines during the second year.
In the Finnish data, average wakings fell to 1.1 at 18 months and 0.9 at 24 months. However, 28.4% of 2-year-olds still woke at least five nights per week.¹
Common infant sleep challenges
Families commonly seek help with:
- Long or stressful bedtime settling
- Frequent or extended night waking
- Repeated night feeding
- Waking 30 to 60 minutes after bedtime
- Short or unpredictable naps
- Needing movement, feeding, or contact for every resettle
- Very early morning waking
- Bedtime resistance
- A schedule that no longer fits the child’s sleep needs
- Sleep disruption during illness, travel, milestones, or nap transitions
Some challenges are developmental or behavioral. Others suggest that the schedule, sleep environment, or bedtime approach needs adjustment.
Snoring, breathing pauses, persistent pain, poor growth, unusual movements, color changes, or extreme daytime sleepiness should be discussed with a pediatrician or pediatric sleep physician rather than addressed solely through sleep coaching.
How Sleep Deprivation Affects Parents
There is a particular kind of exhaustion that comes from being awakened just as your body settles into deeper sleep.
Total sleep matters, but fragmentation matters too. Six broken hours may not feel or function like one protected six-hour stretch.
Maternal mental health
Sleep and mood influence one another.
A 2024 systematic review of studies using actigraphy found that postpartum nighttime sleep was related to fatigue and that total nighttime sleep showed the strongest association with postpartum depression.¹⁰
This does not prove that infant waking alone causes postpartum depression. Postpartum mental health is shaped by biology, personal history, stress, support, medical factors, and many other influences.
It does mean that sleep deserves a place in the conversation.
If you feel persistently hopeless, intensely anxious, unable to sleep even when given the opportunity, or worried that you or your baby may not be safe, contact a healthcare professional promptly. Sleep support can be one part of care, but it is not a substitute for mental-health treatment.
Fathers’ and partners’ mental health
Partners are affected too.
In a study of 455 families with 6- to 8-month-old babies, poorer sleep quality and greater fatigue were associated with depression scores for both mothers and fathers.¹¹
Another longitudinal study of 711 couples found that parental sleep quality and depressive symptoms were interconnected. Maternal sleep quality also predicted paternal depressive symptoms later in the first year.¹²
These findings reinforce an important point: disrupted family sleep is rarely experienced by only one person.
Stress and relationships
When two loving adults are depleted, a 2:00 a.m. disagreement can feel far more serious than it might at noon.
Emerging research links parents’ experience of sleep difficulty with later relationship satisfaction, although this evidence is smaller and less consistent than the evidence concerning parental mood.¹³
Helpful conversations are often practical and specific:
- Who handles which waking?
- Can one parent receive a protected stretch of sleep?
- Can feeding and non-feeding care be divided?
- Is there a trusted family member or caregiver who can safely help?
- Are both parents working toward the same bedtime plan?
Sleep support does not solve every relationship challenge, but reducing confusion and sharing responsibilities clearly can lower some of the overnight strain.
Work, safety, and decision-making
The National Heart, Lung, and Blood Institute explains that sleep deficiency can impair:
- Attention and focus
- Reaction time
- Memory
- Problem-solving
- Emotional regulation
- Judgment and decision-making
Sleep deficiency can also increase mistakes and reduce productivity.¹⁴
These are general sleep-deprivation findings rather than baby-specific statistics, but exhausted parents often recognize the effects: rereading an email several times, forgetting why they entered a room, or feeling too drowsy to drive safely.
Take drowsiness seriously. Avoid driving when you are struggling to remain alert.
Parents should also avoid feeding or comforting a baby on a sofa or armchair when they may fall asleep. Accidental sleep in these locations can be especially dangerous.
Physical health
Short-term sleep loss can produce fatigue, slower reactions, reduced functioning, and emotional volatility.
Over time, chronic sleep deficiency is associated at the population level with cardiovascular, metabolic, immune, and mental-health risks.¹⁴
These associations are not a prediction for any individual parent. They are a reminder that parental sleep is a health need, not an indulgence.
What Does the Research Say About Sleep Coaching?
What is a behavioral sleep intervention?
The phrase “sleep training” is often used as though it describes one method.
It does not.
Behavioral sleep interventions are strategies intended to change sleep-related routines, timing, parental responses, or sleep associations. Depending on the child’s age and the family’s goals, they may include:
- A consistent and calming bedtime routine
- Adjusting bedtime to better match the child’s biological readiness for sleep
- Gradually reducing hands-on assistance
- Scheduled checks with increasing intervals
- Remaining nearby while gradually changing parental presence
- Positive routines and reinforcement for older children
- Schedule and nap adjustments
- Helping a child practice settling with less assistance
Not every plan involves leaving a baby to cry alone. No method is appropriate for every child, age, or family.
Does sleep training work?
The fairest answer is this:
Behavioral sleep interventions help many families, particularly with bedtime and parent-reported sleep problems, but the size and type of benefit vary.
An American Academy of Sleep Medicine task force reviewed 52 treatment studies involving more than 2,500 infants and young children. Ninety-four percent of the studies reported that behavioral interventions were effective, and more than 80% of treated children showed clinically significant improvement.⁵
That influential review included varied ages, methods, outcome measures, and levels of study quality. It should not be interpreted as a guarantee for every child.
A later meta-analysis of nine randomized trials involving 1,656 families found a small increase in parent-reported infant nighttime sleep and a small improvement in maternal mood. However, it did not find a statistically clear reduction in the frequency of night waking. The authors also cautioned that the maternal-mood finding might have been influenced by publication bias.⁸
Objective sleep measurement adds another important layer.
In a randomized trial involving 215 families, parents reported fewer severe sleep problems after the intervention. However, actigraphy showed that nearly all babies in both groups still averaged at least two wakings per night.⁹
This suggests that sleep coaching may help babies resettle more efficiently, signal less often, or spend less time fully awake without eliminating normal biological arousals.
That can still be a meaningful improvement.
Moving from long, fully assisted wakings to brief resettling may feel dramatically different for a family, even when a monitor continues to detect movement or brief awakenings.
What happens to parent outcomes?
Some randomized trials have found improvements in maternal depression symptoms alongside reductions in reported infant sleep problems.¹⁵
Across the larger literature, however, parental benefits are not universal. Preventive sleep education delivered to families with very young infants also tends to produce relatively small effects, with uncertainty in the evidence.¹⁶
A sleep plan may reduce one source of exhaustion without resolving every contributor to parental stress, depression, anxiety, or relationship strain.
Responsible sleep coaching should never promise that improving a child’s bedtime will solve every difficulty a family is experiencing.
Is sleep coaching emotionally harmful?
This concern deserves a calm and honest answer.
In a randomized trial of 43 infants between 6 and 16 months old, graduated extinction and bedtime fading improved selected sleep outcomes. Researchers found no adverse stress response, attachment difference, or emotional or behavioral difference at the 12-month follow-up.⁶
In a larger five-year follow-up of a randomized infant sleep intervention, researchers found no evidence of differences between intervention and control families in:
- Child emotional problems
- Conduct problems
- Chronic stress
- Parent-child closeness or conflict
- Attachment-related measures
- Parental mental health⁷
The best available controlled evidence has therefore not demonstrated lasting emotional or attachment harm from the specific behavioral approaches studied.
However, “no demonstrated harm” is not the same as proof that every technique, used at every age, intensity, or duration, is harmless.
Studies have limitations. Some are small. Formal behavioral approaches have also been studied more frequently in older infants than in newborns.
Parents should not be pressured into a method that conflicts with their values or feels inappropriate for their child.
What long-term research does and does not show
The five-year follow-up found no marked long-term benefits or harms.⁷
This can be reassuring in two directions:
- Using a well-chosen behavioral strategy has not been shown to damage a child over the long term.
- Choosing not to use formal sleep training does not doom a child to poor sleep or developmental problems.
Sleep coaching is a tool for reducing a family’s current sleep burden. It is not a requirement for healthy attachment, normal development, or future success.
Why One-Size-Fits-All Sleep Plans Do Not Work
Babies are not interchangeable, and families are not interchangeable.
A plan should fit the child and family rather than forcing every child into the same schedule or behavioral method.
Temperament
Some babies adapt quickly to change. Others are highly alert, persistent, sensitive to stimulation, or slow to warm up.
The family’s overall goal may be similar, but the pace, amount of parental presence, and way changes are introduced may need to be very different.
Feeding and growth
Night-feeding decisions depend on:
- Age
- Growth
- Medical history
- Milk supply
- Feeding method
- Pediatric guidance
- The family’s feeding goals
A sleep consultant should not diagnose feeding problems or independently instruct a family to eliminate medically necessary feeds.
Sleep coaching and night weaning are not automatically the same process.
Development
Rolling, sitting, crawling, standing, walking, language development, separation awareness, and nap transitions can all affect sleep.
A plan designed for a 5-month-old should not simply be recycled for a 15-month-old.
Medical issues
Reflux symptoms, eczema, allergies, recurrent ear infections, chronic congestion, iron deficiency, breathing problems, and other medical conditions can disrupt sleep.
Behavioral strategies cannot treat an untreated medical cause.
Responsible sleep coaching includes recognizing warning signs and referring families to appropriate healthcare professionals.
Sleep environment and safety
Light, sound, temperature, routines, and timing may influence sleep, but safety must always come first.
For babies younger than 1 year, current American Academy of Pediatrics guidance includes:
- Placing the baby on their back for every sleep
- Using a firm, flat, non-inclined surface intended for infant sleep
- Keeping soft objects and loose bedding out of the sleep space
- Room-sharing without bed-sharing, ideally for at least the first 6 months¹⁷
No sleep goal justifies weighted infant sleep products, positioners, inclined sleep, loose bedding, or another unsafe workaround.
Family goals and capacity
A breastfeeding parent who wants to preserve one night feeding has a different goal from a family whose pediatrician has cleared complete night weaning.
A family sharing a room has different logistics from a family using a separate nursery.
Culture, work schedules, siblings, housing, parental mental health, caregiver support, and tolerance for crying all matter.
Individualized coaching matters because success does not mean that every baby must sleep exactly 12 uninterrupted hours.
Success means achieving a safe, realistic, meaningful improvement that the family can sustain.
What Parents Should Look for in a Sleep Consultant
The sleep-consulting field is not regulated in the same way as medicine, nursing, psychology, or dietetics.
A certification may demonstrate focused education, but the title “sleep consultant” alone does not establish clinical licensure or a universal professional standard.
Before hiring a baby or pediatric sleep consultant, ask the following questions.
What education and experience do you have?
Look for specific training, relevant experience, continuing education, and honest scope-of-practice boundaries.
A trustworthy consultant should be able to explain what their certification means without presenting it as a medical license.
How do you individualize plans?
A consultant should ask about:
- The child’s age
- Temperament
- Health history
- Feeding
- Current schedule
- Sleep environment
- Family goals
- Parental concerns
- What the family is and is not comfortable doing
A plan created before these details are understood is unlikely to be genuinely individualized.
Which methods do you use?
Terms such as “gentle,” “responsive,” and “no-cry” can mean different things to different professionals.
Ask what you will actually be expected to do at bedtime and during night wakings.
How do you align with AAP safe-sleep guidance?
Infant safety should be built into every recommendation.¹⁷
A sleep consultant should never prioritize longer sleep over safe positioning, an appropriate sleep surface, or a clear sleep environment.
When do you refer to a pediatrician or other clinician?
A responsible coach recognizes medical, feeding, breathing, developmental, and mental-health concerns that fall outside the consultant’s role.
What support is included?
Clarify:
- How communication occurs
- Expected response times
- How long support lasts
- Whether plan adjustments are included
- What happens if progress stalls
- Whether support is provided during illness or travel disruptions
How do you continue your education?
Infant sleep research and safety guidance evolve. Continuing education should be a normal part of professional practice.
How will you respect our goals?
Family-centered coaching is collaborative.
Parents should understand the available options, expected tradeoffs, and reasoning behind each recommendation. They should never feel bullied into a method that conflicts with their values.
Credentials matter. So do communication, appropriate referrals, safety practices, experience, and the willingness to adjust a plan.
Independent Recognition in Denver
For families comparing Denver baby sleep consultants, independent evaluation can be one useful consideration alongside personal fit, training, safety practices, and support.
In its 2026 Denver guide, Betteroo named Rocky Mountain Sleeping Baby Best Overall Baby Sleep Consultant in Denver.
Betteroo states that its evaluation began with more than 20 Denver-area sleep consultants and coaches. Candidates were then assessed using published criteria that included training, an active local practice, transparent methodology, and verifiable parent feedback.¹⁸
This independent editorial recognition is meaningful to the Rocky Mountain Sleeping Baby team, but it should not replace a family’s own evaluation.
The right consultant’s approach, communication, safety practices, and level of support should fit your family.
Common Baby Sleep Myths and What the Evidence Says
Myth 1: Sleep coaching is cruel
Sleep coaching is an umbrella term, not a single cry-based method.
Studied approaches range from bedtime fading to graduated checking and other behavioral strategies. Controlled studies have not found lasting differences in attachment, emotional health, behavior, or parent-child relationships, although the evidence is not unlimited.⁶˒⁷
Myth 2: Babies simply outgrow every sleep issue
Many sleep patterns improve naturally with development.
Some persistent problems do not resolve quickly, and they may continue affecting the child and family. In one longitudinal study, early frequent waking and short sleep predicted similar patterns at 12 months.¹⁹
Waiting is a valid choice when the situation is safe and manageable. It is not the only valid choice.
Myth 3: All babies sleep through the night by 6 months
They do not.
In one cohort, approximately 38% of 6-month-olds did not sleep six uninterrupted hours, and 57% did not sleep eight uninterrupted hours.²
A six-month birthday is not a sleep deadline.
Myth 4: There is one correct sleep method
Several behavioral approaches have evidence behind them.⁵˒⁶
Temperament, age, feeding, health, family values, and caregiver capacity all affect which approach may fit.
Consistency matters, but consistency with the wrong plan is not the goal.
Myth 5: A baby who wakes is a bad sleeper
Waking is biologically normal.
A more useful set of questions is:
- What happens after the waking?
- Does the baby need to feed?
- Is the baby comfortable?
- Can the baby resettle?
- How long is everyone awake?
- Is the pattern sustainable for the family?
Myth 6: If sleep coaching works, the baby never wakes again
Objective studies show that babies may continue to wake even when parents report that sleep has improved.⁸˒⁹
Sleep coaching often changes settling, signaling, or the duration of waking rather than eliminating every normal arousal.
Frequently Asked Questions About Baby Sleep
What percentage of babies sleep through the night at 6 months?
It depends on how “sleeping through the night” is defined.
One study found that 62.4% of 6-month-olds slept at least six uninterrupted hours, while 43% slept at least eight hours. This means 37.6% and 57%, respectively, had not reached those milestones.²
Is it normal for a 6-month-old to wake at night?
Yes. Night waking remains common at 6 months and throughout the first year.¹˒²
Whether a particular pattern deserves attention depends on the child’s feeding needs, health, duration of waking, ability to resettle, and the effect on the family.
How many times do babies wake at night?
In two large birth cohorts, babies averaged approximately 2.1 to 2.5 night wakings during the first year, with substantial variation between individual children.¹
When do babies start sleeping through the night?
There is no universal age.
Sleep consolidates gradually, and the answer changes depending on whether “through the night” means six hours, eight hours, or an adult-length night.
Many healthy babies are not sleeping an uninterrupted eight-hour stretch at 6 months or even at 12 months.²
How much sleep does a baby need?
For babies between 4 and 12 months, the American Academy of Sleep Medicine recommends 12 to 16 hours of total sleep per 24 hours, including naps.³
The recommendation does not specify one amount for babies younger than 4 months because normal variation is especially broad during the newborn period.
Does sleep training work?
Behavioral interventions improve bedtime and parent-reported sleep problems for many families.⁵
Average effects are modest in some reviews, and objective studies suggest that babies may continue to wake while resettling more efficiently or signaling differently.⁸˒⁹
Is cry-it-out the only form of sleep training?
No.
Behavioral options include bedtime routines, bedtime fading, gradual reduction of assistance, parental-presence approaches, graduated checks, and schedule adjustments.
Families can choose an approach that fits their child, values, goals, and capacity.
Does sleep training harm attachment?
The best available randomized follow-up studies have not found evidence of attachment or parent-child relationship harm from the behavioral approaches studied.⁶˒⁷
The evidence has limitations, so age, health, method, intensity, and family fit still matter.
Can I use sleep coaching and continue breastfeeding?
Often, yes.
Sleep coaching and night weaning are not synonymous. Feeding plans should account for the child’s age, growth, milk supply, medical needs, and the family’s goals, with pediatric or lactation guidance when appropriate.
When should I call my pediatrician about sleep?
Contact your child’s clinician about:
- Snoring
- Pauses or difficulty breathing
- Color changes
- Poor growth
- Persistent pain
- Unusual movements
- Extreme sleepiness
- Feeding concerns
- A sudden and significant change in sleep
Seek urgent medical help for breathing difficulty, color changes, unresponsiveness, or another immediate safety concern.
A Hopeful and Honest Way Forward
Baby sleep is not a contest.
Sleeping through the night is not a measure of your bond with your baby or your competence as a parent.
Research shows that infant sleep is highly variable. Many babies continue waking beyond the age at which parents are told they “should” sleep all night. Safe, age-appropriate behavioral support can help many families, but there is no single method that every family is required to use.
You are allowed to wait if the current pattern is safe and manageable.
You are also allowed to ask for help when it is no longer sustainable.
Support should consider the whole picture:
- Your baby’s health
- Age and development
- Temperament
- Feeding needs
- Your family’s values
- Your practical circumstances
- Your own need for rest
There may not be one perfect night or one perfect method.
There can still be a thoughtful next step.
If your baby’s sleep is no longer sustainable for your family, you do not have to sort through conflicting advice alone. Rocky Mountain Sleeping Baby provides individualized, evidence-informed sleep support built around your child’s age, temperament, health, feeding needs, and your family’s goals.
Based in Denver, Colorado, we help families from all over the world. Families in Southern California also have the opportunity to work with Allison, our certified sleep consultant based in Los Angeles, California, while receiving the same thoughtful, individualized guidance our team is known for.
Talk through your family’s sleep challenges and explore an individualized plan:
Book your free consultation
Medical and safety note: This article provides general education and is not medical advice. Always follow your pediatric clinician’s guidance regarding feeding, growth, illness, development, and medical symptoms. Follow current American Academy of Pediatrics safe-sleep recommendations.
References
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- Mäkelä TE, et al. Parental discontent with infant sleep during the first two years of life. Behavioral Sleep Medicine. 2024;22(2):227–242.
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- Kempler L, et al. Do psychosocial sleep interventions improve infant sleep or maternal mood in the postnatal period?. Sleep Medicine Reviews. 2016;29:15–22.
- Hall WA, et al. A randomized controlled trial of an intervention for infants’ behavioral sleep problems. BMC Pediatrics. 2015;15:181.
- Sobol M, et al. Sleep, circadian activity patterns and postpartum depression: A systematic review and meta-analysis of actigraphy studies. Journal of Sleep Research. 2024;33(4).
- Hall WA, et al. Relationships between parental sleep quality, fatigue, cognitions about infant sleep, and parental depression. BMC Pregnancy and Childbirth. 2017;17:104.
- Saxbe DE, et al. Sleep quality predicts persistence of parental postpartum depressive symptoms and transmission of depressive symptoms from mothers to fathers. Annals of Epidemiology. 2016;26(8):528–533.
- Bai S, et al. Postpartum sleep and relationship satisfaction among Black mothers. Journal of Family Psychology. 2025.
- National Heart, Lung, and Blood Institute. Sleep deprivation and deficiency: How sleep affects your health. Updated June 15, 2022.
- Hiscock H, et al. Improving infant sleep and maternal mental health: A cluster randomised trial. Archives of Disease in Childhood. 2007;92(11):952–958.
- Matsunaka E, et al. Effectiveness of preventive parental education delivered from pregnancy to 1 month postpartum. JBI Evidence Synthesis. 2026;24(4):667–711.
- Moon RY, et al. Sleep-related infant deaths: Updated 2022 recommendations for reducing infant deaths in the sleep environment. Pediatrics. 2022;150(1).
- Betteroo. Best baby sleep consultants in Denver, CO (2026). Accessed July 22, 2026.
- Netsi E, et al. Predictors of sleep disturbances in the first year of life: A longitudinal study. Sleep Medicine. 2017;36:78–85.
