When Do Babies Start Sleeping Through The Night? A Dad's Guide

It's 3:14 am on a Tuesday, and I'm currently having a heated internal debate about whether the shadow in the corner of the nursery is a pile of laundry or the ghost of my pre-parenting freedom. Twin A (the loud one) is currently doing her best impression of a car alarm that's been triggered by a gentle breeze, while Twin B is blissfully snoring through the chaos. I'm covered in a sticky substance that I'm choosing to believe is just old milk, rocking a baby who's fundamentally opposed to the concept of rest. You're probably here because you're sitting in a similar darkened room, frantically googling things like "when do babie sleep" or searching for a "babi sleep schedule" with your one free thumb while your eyes burn.

Before the girls arrived, my idea of infant sleep was heavily influenced by glossy parenting magazines and smug Instagram influencers who claimed their newborns simply drifted off to the soothing sounds of Enya. I assumed there was a specific, magical date when a switch would flip and we'd all go back to sleeping like normal humans. If you're currently waiting for that switch, I'm so sorry to be the bearer of bad news.

The great sleep lie we all bought into

Let's address the massive, sleep-deprived elephant in the room: what you and I consider a full night's sleep is vastly different from what the medical community considers a full night's sleep. In my naive "before" life as a journalist who occasionally slept in till 10 am on weekends, I thought "sleeping through" meant I'd put the girls down at 7 pm, drink a glass of reasonably priced Rioja with my wife, and wake up naturally at 7 am.

My GP politely shattered this illusion at our two-month check-up. She told me that medically speaking, if a baby manages about six continuous hours without screaming for a caregiver, congratulations, they've officially slept through the night. Six hours. I actually laughed out loud in the sterile little clinic room. Six hours was an afternoon nap in my university days. Now, it's the holy grail.

Because humans naturally wake up briefly between sleep cycles, the real victory isn't that they stop waking up—it's that they figure out how to transition between those cycles without demanding that you come in and perform a desperate, sleep-deprived tap dance to soothe them back down.

The highly inaccurate timeline of nighttime peace

Sleep is a developmental milestone, not a race, which is a lovely sentiment that completely fails to comfort you when you've been awake for forty-eight hours straight. Filtered through my own highly unreliable, caffeine-addled memory, here's what the timeline actually looks like.

The dark ages (0 to 2 months)
During the first two months, babies need something like 14 to 17 hours of sleep a day, but they break it up into cruel little two-hour chunks because their stomachs are the size of a thimble. You can't expect a newborn to give you a long stretch. In fact, our health visitor told us we actively had to wake the twins up to feed them until they surpassed their birth weight. Waking a peacefully sleeping baby at 2 am is a specific type of psychological torture that nothing prepares you for.

The false hope (3 to 5 months)
Around three months, Twin B actually gave us a five-hour stretch. I woke up in a panic, convinced she had stopped breathing, only to find her happily chewing on her fist. We thought we had cracked it. Then the infamous four-month sleep regression hit us like a freight train. Apparently, this is when their sleep cycles mature into adult-like stages, but it feels distinctly like they're punishing you for having a good time. They go from sleeping relatively well to waking every forty-five minutes. Page 47 of the parenting book we bought suggests you "remain calm" during this phase, which I found deeply unhelpful at 3am when I was crying over a dropped dummy.

The promised land, allegedly (6 to 9 months)
By six months, we were told most babies are physiologically capable of going without a night feed. What they don't print in bold letters is that nearly forty percent of six-month-olds still wake up in the night anyway. Twin A fell firmly into that forty percent. She didn't need milk; she just wanted to check if I was still available to perform my duties as her personal nighttime jester. It's also right around this age that teething and separation anxiety tag-team you, obliterating whatever fragile routine you managed to build.

The absolute non-negotiables of cot safety

If there's one thing that kept me awake more than the crying, it was the sheer anxiety of sudden infant death syndrome (SIDS). The guidelines from the NHS and paediatricians are incredibly strict, and I found myself obsessively checking the cot like a security guard on patrol.

I learned very quickly that your baby’s cot needs to look shockingly boring. You must put them on their backs for every single sleep, on a mattress so firm it feels a bit like a piece of wood covered in a fitted sheet. No fluffy blankets, no pillows, no soft toys, and absolutely no cot bumpers (despite the fact that every nursery on Pinterest seems to feature them). We shared a room with the twins for the first six months, tiptoeing around our own bedroom in the dark to avoid waking them. Also, my GP was very clear: skip the weighted blankets and weighted swaddles completely, as they're a massive overheating and safety risk.

If you're worried about them being cold without blankets, you just put them in a wearable sleeping bag. We eventually found some great breathable ones (you can check out Kianao's organic cotton sleep collection here) that kept them at a normal temperature without me having a panic attack about loose fabric covering their faces.

Teething destroys everything (and how we barely survived)

Just when you think you've finally figured out when do babies settle down for the night, a tiny, razor-sharp tooth decides to cut through their gums, and you're plunged straight back into the newborn days of sleep deprivation. Teething is relentless. Twin A started teething at four months, resulting in endless drool and midnight whimpers.

We bought basically every teething contraption on the internet out of sheer desperation. I've incredibly strong opinions on them now.

My absolute savior—and I'm not exaggerating when I say I'd have paid a thousand pounds for this thing at 4 am—was the Sleeping Bunny Teething Rattle. When Twin A was thrashing around, inconsolable with gum pain, the smooth, natural wooden ring on this bunny was the only thing that provided enough firm resistance to seriously calm her down. The soft crochet bunny head smells faintly of our house now, and it became a genuine comfort object for her. Plus, it has a tiny rattle inside, so in the pitch black of the bedroom, I could hear exactly where she had dropped it.

Then we've the Panda Silicone Teether. It’s… fine. It’s completely fine. It’s made of food-grade silicone, it’s safe, and Twin B occasionally gnawed on it while we were waiting for a lukewarm flat white at the local café. It’s easy to wipe down when it inevitably hits the pavement, but it never became the beloved holy grail that the bunny did. It’s currently living at the bottom of the changing bag, covered in biscuit crumbs, doing its job adequately.

For sheer distraction value, the Rainbow Silicone Teether is quite good. When one twin was screaming easily because the other twin looked at her funny, shoving this brightly coloured silicone rainbow into her hands usually bought me about three minutes of peace. The different textures on the ridges are great, though I’ve stepped on it barefoot more times than I care to admit.

Desperate tactics that sort of worked for us

I read dozens of medical blogs that tried to explain the science of infant sleep, but honestly, it’s mostly guesswork wrapped in scientific-sounding terms. I think overtiredness has something to do with cortisol acting like adrenaline, which makes them hyperactive instead of sleepy, but it could also just be the moon phases for all I know.

The books all give you lists of parallel commands that are impossible to follow when you're exhausted. Instead of strict bullet points, I'll just tell you that you basically have to throw open the curtains and make a racket during the day so they learn what sunlight is, while treating night feeds like a covert military operation with dim lights, zero eye contact, and a swift zip of a breathable sleeping bag.

And then there's the infamous "drowsy but awake" method. The idea is you put them in the cot right before they fall asleep so they learn to soothe themselves. For the first four months, attempting "drowsy but awake" with the twins was like trying to diffuse a bomb with a feather. The second their backs touched the mattress, their eyes snapped open in sheer betrayal. But eventually, agonizingly slowly, it sort of started to work. Sometime around eight months, Twin B honestly rolled over, sucked her thumb, and went to sleep on her own. I nearly wept.

Parenting is just a relentless cycle of everything changing the moment you get used to it. The exhaustion is big, and the nights feel like they last for decades, but eventually, the stretches of sleep do get longer. Until then, you survive on caffeine, solidarity, and the knowledge that one day, you might get to sleep until 7 am again.

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FAQ: The midnight panic questions

Why is my baby suddenly waking up every hour again?
If they're around four months old, welcome to the sleep regression. Their brains are rewiring how they sleep, shifting from deep newborn slumber to lighter, adult-like cycles. If they're older, it's usually teething, a minor cold, or they've learned a new skill like rolling and feel the overwhelming urge to practice it at 3 am.

Is it okay if my baby rolls onto their stomach in their sleep?
My GP told me that you always, always place them on their back to sleep. However, once they're strong enough to confidently roll from back to front and front to back on their own, you don't have to keep flipping them over all night. Just make sure the cot is completely empty so their face isn't pressed into a blanket.

Do I really have to stop swaddling?
Yes, the minute they show any signs of trying to roll over, the swaddle has to go. For us, this happened around three months. It was a miserable few nights of them startling themselves awake with their own flailing arms, but you transition to a safe, arms-free sleep sack and they eventually get used to it.

Does baby formula help them sleep longer than breast milk?
This is a massive myth that I definitely fell for. Formula takes slightly longer to digest, which might buy you an extra 20 minutes, but it doesn't magically make a baby sleep through the night. Sleep consolidation is about brain development and self-soothing, not just how heavy their stomach feels.

Is teething really to blame for bad sleep?
In my house, absolutely. Teething pain is worse at night because there are no daytime distractions. The pressure in their gums throbs when they lie flat. A good gnaw on a wooden ring before bed and some infant paracetamol (when approved by your doctor) was the only way we survived the worst of the molar weeks.