“

Ask ten parents about baby sleep and you will get ten different experiences, twelve different opinions, and at least one person who swears their baby slept through from six weeks (they did not). The volume of conflicting advice around baby sleep is genuinely overwhelming, and the gap between what parents are told to expect and what they are actually experiencing can be one of the most exhausting aspects of the first year. This guide gathers the most common baby sleep questions parents ask — drawn from the recurring searches and midwife conversations that define this territory — and answers them honestly, without shame, without a single rigid method, and without the expectation that your baby will perform to any specific standard. The goal is clarity, not pressure.

Why Is My Baby Still Waking at Night?

Night waking is one of the most universal baby sleep questions, and the answer is simpler — and more reassuring — than most parents expect. Babies wake at night because waking is biologically normal for them. Their sleep cycles are shorter than adult cycles (approximately 45–50 minutes versus 90 minutes), they spend more time in active sleep that involves partial arousals, and their needs for feeding, comfort, and co-regulation do not pause at 7pm simply because a parent would like them to. A baby who wakes at night is not broken, has not been “”ruined”” by any feeding or settling approach, and is not behind on a developmental schedule. What changes over time — and it does change, reliably — is the frequency of waking and the baby’s capacity to resettle independently between cycles.

If night waking is impacting your wellbeing or functioning significantly, that is a practical problem worth addressing — but through the lens of what works for your specific family, not through the lens of what a baby “”should”” be doing by any given age. Your health visitor can support you in finding an approach that fits.

What Is a Sleep Regression and How Long Does It Last?

A sleep regression is a period of disrupted sleep in an otherwise settled baby, typically associated with a developmental leap where the brain is working hard on new skills and sleep temporarily takes a back seat. The term “”regression”” is somewhat misleading — it implies something has gone backwards, when in reality something is going forward in the baby’s development and sleep is temporarily affected as a result. The most commonly reported regressions occur at around four months, eight to ten months, and twelve months, though individual babies experience them differently.

The four-month regression is the most significant because it coincides with a permanent change in sleep architecture — the baby’s sleep cycles shift from newborn-style sleep to a more adult pattern, which means they now experience full light-sleep arousal between cycles. This is not something that passes and reverts; it is the new normal, and any settling strategies that were working before may need to be revisited in light of this change. Most regressions last between two and six weeks when managed with calm consistency, though this varies. Increasing wake windows slightly, maintaining a consistent bedtime routine, and responding warmly without dramatically changing your approach are the most evidence-consistent strategies during a regression.

What Are Wake Windows and How Do I Use Them?

A wake window is the optimal amount of time a baby can comfortably stay awake between sleeps before becoming overtired. Overtiredness is worth avoiding because when a baby exceeds their comfortable wake window, the body releases cortisol to fight fatigue — and cortisol makes settling harder, not easier. The practical effect of an overtired baby is one who fights sleep despite being exhausted, takes longer to settle, and often wakes earlier from that sleep than a well-timed baby would.

Wake windows are not a rigid schedule — they are a framework for observing and timing sleep in a way that works with your baby’s biology. Tiredness cues (eye rubbing, yawning, reduced engagement with toys, staring blankly) are the most reliable complement to wake window guidance. The approximate windows by age are: 45–60 minutes for newborns, growing to around 3–4 hours by 10–12 months. If your baby consistently fights sleep, naps poorly, or wakes early, checking whether wake windows are being respected — either too short or too long — is a useful first step before trying anything more complex.

Should I Use White Noise for Baby Sleep?

White noise — a steady, consistent sound that masks variable household noise — is a legitimately useful baby sleep tool for many families. It works because it replicates the continuous sound environment of the womb (which was considerably louder than most people expect) and because it reduces the likelihood that a light-sleeping baby will be disturbed by ambient sound between sleep cycles. Many parents find it particularly helpful during the four-month regression, for contact-napping transitions, and for babies who are sensitive to household activity during naps.

Safe use is straightforward: keep the volume at or below 50 decibels (roughly equivalent to a quiet shower), position the device at a distance from the baby rather than directly next to the cot, and choose a continuous sound rather than one with a loop that can become a sleep association tied to that specific sound starting. White noise is not a magic fix and does not work for every baby — but for those it helps, it is a safe and practical tool.

When Should My Baby Drop From Two Naps to One?

The transition from two naps to one typically happens between 14 and 18 months, though some babies are ready as early as 12 months and others not until closer to 20 months. The signs that a baby is ready for the transition include: consistently fighting the second nap even when wake windows seem appropriate, taking a long time to fall asleep for either nap, napping well but then struggling significantly at bedtime, or waking very early in the morning despite good overnight sleep. Moving too early — before readiness signs are present — often results in an overtired, unsettled baby. Waiting until the signs are genuinely consistent, then extending the morning nap gradually while shifting it later, tends to produce the smoothest transition.

“The most common baby sleep mistake is not a specific settling choice or a schedule decision. It is applying one-size-fits-all advice to a baby who is, categorically, not one-size-fits-all. The families who navigate sleep best are those who observe their individual baby first and apply frameworks second.”

— Lucy Shrimpton, infant sleep specialist and founder of The Sleep Nanny. Shrimpton has supported thousands of families through baby and toddler sleep challenges and consistently emphasises the importance of individual baby observation over prescriptive method — a perspective that directly shapes the approach of this guide.

For a complete overview of baby sleep across the first year — including safe sleep foundations and understanding infant sleep architecture — visit our full Baby Sleep Beginner Guide in the Baby Care section.

Frequently Asked Questions

My baby only sleeps on me — how do I transition to cot sleeping?

Contact napping is extremely common and not a problem unless it has become unsustainable for your family. Transitioning to independent cot sleeping is most successful when approached gradually rather than abruptly: beginning with naps rather than nights (when stakes feel lower), placing the baby in the cot drowsy rather than fully asleep, using a consistent wind-down routine as a signal, and staying close initially before gradually increasing distance. Warm the cot mattress briefly before transfer, and use a worn item of your clothing nearby if smell is a factor. Some babies transition smoothly; others take several weeks of consistent practice. Both are normal.

Is it okay to feed my baby to sleep?

Feeding to sleep is one of the most natural and effective settling strategies available and there is nothing inherently wrong with it. The practical consideration is that if a baby always falls asleep feeding, they may need to feed to resettle between overnight sleep cycles — which can mean multiple night feeds beyond what is nutritionally necessary, depending on the baby’s age. Whether this is a problem depends entirely on how sustainable it is for your family. If it is working for everyone, there is no reason to change it. If overnight waking from this pattern is affecting your functioning, there are gradual approaches to supporting more independent settling that do not require abrupt changes.

At what age should my baby be sleeping through the night?

There is no universal age at which babies reliably sleep through the night, and the threshold varies significantly by definition — “”sleeping through”” can mean anything from five hours to twelve hours depending on who you ask. Many babies consolidate into longer overnight stretches between six and nine months; others continue waking regularly well into the second year, and both are within the range of normal. Research suggests that around 28% of twelve-month-olds still wake at night. If night waking is affecting your family’s functioning significantly, speaking with your health visitor about supportive approaches is entirely appropriate.

What is the difference between a sleep crutch and a sleep association?

These terms are often used interchangeably but they carry different connotations. A sleep association is simply whatever your baby connects with falling asleep — feeding, rocking, a dummy, white noise, your presence. Sleep associations are not inherently problematic; all humans have them. The term “”sleep crutch”” is sometimes used to imply a dependency that needs breaking, but this framing can add unnecessary guilt. The relevant question is not whether an association exists, but whether it is workable for your family in the long term. If a sleep association requires you to be actively present at every single night waking, and that is no longer sustainable, it is worth addressing — not because associations are wrong, but because your sleep matters too.

Key Takeaways

• Night waking is biologically normal for babies throughout the first year — frequency reduces over time as developmental capacity for self-settling grows.
• Sleep regressions reflect developmental leaps, not permanent deterioration — the four-month regression involves a permanent change in sleep architecture that may require revisiting settling strategies.
• Wake windows help time sleep optimally — an overtired baby is harder to settle, not easier, so timing matters as much as technique.
• White noise is a safe and useful tool for many babies when used at appropriate volume and distance.
• The nap transition from two to one typically happens at 14–18 months — readiness signs matter more than age.
• No single approach works for every baby — observing your individual baby first, then applying frameworks, produces better outcomes than applying frameworks first.

Baby sleep questions have a way of feeling more urgent than almost any other parenting topic, partly because sleep deprivation makes everything feel more intense and partly because the advice landscape is so crowded with contradictory voices. The answers in this guide are grounded in what research and clinical experience consistently show — not in what makes the most dramatic promise. Your baby will sleep. The timeline is individual, the path is not linear, and you are doing better than the 3am hour makes it feel.