The Biggest Myth About Sleep Training — And Why It's Time We Put It to Bed

The Biggest Myth About Sleep Training — And Why It's Time We Put It to Bed

When most Singapore parents hear the words "sleep training," a very specific image comes to mind: a baby crying alone in a dark room while exhausted parents sit outside the door, clock in hand, willing themselves not to go in. It's an uncomfortable image. And for a lot of families here, that image alone is enough to write off sleep training entirely.

But that image is outdated. It belongs to a different era of parenting, one that has largely moved on. The idea that sleep training is synonymous with Cry It Out (CIO) is, without doubt, the biggest myth in the baby sleep world. And it's one that's keeping thousands of sleep-deprived Singapore families from getting the help they actually need. So let's set the record straight.


Where Did This Myth Come From?

To understand why this misconception is so sticky, it helps to know a little history. The concept of letting babies "cry it out" was popularised in the 1980s by two American physicians: Dr. Marc Weissbluth, who advocated placing a baby in their crib and essentially leaving them until morning, and Dr. Richard Ferber, who promoted what he called "controlled crying," where parents let the baby cry for increasing time intervals before briefly checking in. These two approaches dominated the sleep training conversation for decades and became so culturally ingrained that, for many people, they are sleep training.

That was over 40 years ago.

Parenting science has come a long way since then. So has our understanding of infant development, attachment theory, and what babies actually need at night. Yet the CIO myth has proven stubbornly persistent, particularly in Asia, where the very idea of sleep training is still relatively new to many families, and cultural values around responsiveness and closeness make the old-school image even more alarming.


Sleep Training Is an Umbrella, Not a Method

Sleep training is an umbrella term for a wide range of approaches that help babies learn to fall asleep and fall back to sleep, independently. While CIO is one of those approaches, it sits at the far end of the spectrum. Most modern sleep training looks nothing like it.

Modern sleep training methods exist on a spectrum of parental presence. At one end, you have approaches where parents remain in the room, physically present, offering quiet reassurance throughout the entire process. In the middle are methods where parents step out briefly but return at set intervals, so the baby always knows someone is coming back. At the other end sit the more hands-off approaches, including the original CIO, where parents give the baby extended space to settle independently.

All of these approaches share the same goal of teaching babies to self-soothe, but they feel radically different to both parent and child. The "right" position on that spectrum isn't determined by what's most popular or what worked for your neighbour's baby. It's determined by your baby's temperament, your own emotional bandwidth, how quickly you need results, and your family's values around responsiveness.

What has changed in the past two decades is the research validating the gentler end of that spectrum. Methods that once felt too slow or too soft to be taken seriously now have strong evidence behind them, comparable outcomes to faster approaches, with significantly lower parental distress. CIO is no longer the default, or the gold standard, or the only option that "really works." It's simply one tool among many. 

 

Image: When Can Baby Sleep with a Blanket? - Healthline

 

What Singapore Parents Are Actually Dealing With

Singapore is one of the most sleep-deprived countries in the world. A 2024 YouGov survey found that fewer than half of Singaporeans, just 44%, manage seven or more hours of sleep a night, placing us among the worst-performing countries globally. Among new parents, this figure is almost certainly lower.

Research consistently shows that chronic poor sleep impacts physical health, mental wellbeing, relationships, and cognitive function. For new mothers in particular, sleep deprivation is closely linked to postpartum anxiety and depression. When mum and dad aren't sleeping, the whole family feels it. The irony is that the very myth keeping families from seeking help, that sleep training means leaving their baby to cry, is robbing them of a solution that could genuinely transform their household. Families shouldn't have to white-knuckle through years of broken nights because of a 40-year-old misconception.


Scientific Research Behind Sleep Training

Studies have found that babies in sleep training programs actually showed lower stress hormone levels over time compared to babies with persistent sleep difficulties.

Even more telling: a broader review of 52 sleep training studies found that behavioural sleep interventions produce reliable, lasting improvements in infant sleep, with an overwhelming majority of children responding positively, with benefits extending to the entire family's wellbeing.


Why the Myth Is So Hard to Shake in Singapore

If the evidence is this clear, why does the CIO myth still dominate the conversation? Part of it is cultural. In Singapore and across much of Asia, the default instinct is responsiveness, and rightly so. We are raised in communities that prize closeness, where a crying baby is something to be attended to immediately, and where the idea of deliberately withholding comfort can feel deeply at odds with everything we know about being a good parent. That instinct is not wrong. 

But there is another force at work: the sheer noise of parenting information online. A CNA feature on modern Singaporean parenting captured this well, quoting clinical psychologist Mr Soh Wei Jie from Annabelle Psychology: the real challenge parents face today isn't finding information, it's knowing how to filter it. Social media serves up extreme examples. A sleep training reel that goes viral is rarely the gentle, unremarkable success story. It's a dramatic one. And so the dramatic version — the sobbing baby, the closed door, the hardened parent, is what sticks in the cultural memory.

Add to that the generational tension many Singapore families navigate. Grandparents who raised children before sleep training was a concept at all often pushed back hard. New parents, already drowning in conflicting advice, default to the loudest or most familiar voice. And the loudest voice, more often than not, is still telling them that sleep training means CIO.


Times Have Changed. Our Approach Should Too

Rather than wading through conflicting advice online or defaulting to whatever a well-meaning relative suggests, Sleepy Bubba cuts through the noise. They help you understand why your baby is waking, identify what approach suits your baby's specific temperament, and guide you through change in a way that feels manageable and humane. You don't have to figure this out alone, and you certainly don't have to do it the hard way.

So if you've been avoiding sleep training because the image in your head involves a lot of crying and a closed door, it's time to update that image. Sleep training in 2026 looks like gradual, supported change rather than sudden withdrawal. It looks like a family, finally, getting some rest.

If you're a Singaporean parent navigating sleepless nights and wondering whether sleep training might be right for your family, Sleepy Bubba offers personalized, gentle guidance tailored to your baby and your values. You don't have to choose between a responsive, loving approach and actually getting some sleep.

Download the CradleNest app, or drop us a WhatsApp at +65 9128 5268 to find out more about Sleepy Bubba’s services. Discover more parenting resources on the app, and follow us on Instagram @cradlenestsg for updates, tips, and a peek into our growing community.



This article was informed by resources from the following: