Avoid This Advice About Your Sleeping Newborn

If you’ve had a baby in the last few weeks, you’ve probably already been handed a stack of sleep advice from relatives, friends, and random people at the supermarket. Some of it is genuinely useful. A lot of it is outdated, oversimplified, or just plain wrong for newborns. The trouble is that newborn sleep doesn’t work like adult sleep or even toddler sleep, so advice that sounds sensible can actually work against you.

Below are some of the most common bits of newborn sleep advice worth questioning, along with what’s more likely to actually help. As always, if you have specific worries about your baby’s sleep, breathing, feeding or weight gain, check with your GP, health visitor or paediatrician rather than relying on general articles like this one.

Myth #1: “Keep Your Newborn Awake During the Day So They Sleep Better at Night”

This one gets repeated a lot, but it tends to backfire. Newborns (roughly 0 to 3 months) typically need somewhere between 14 and 17 hours of sleep across 24 hours, often in short stretches of one to three hours at a time. They don’t yet have a mature body clock, so they can’t “learn” a day and night pattern just because you keep them up.

What actually happens if you push a newborn past their natural tiredness window is overtiredness, and an overtired newborn is often harder to settle, not easier. They tend to get wired, cry more, and fight sleep when you finally do put them down. Instead, watch for early tired signs, things like staring off, jerky movements, yawning, or turning away from noise and light, and start your settling routine before they hit full-blown overtired meltdown mode.

Myth #2: “Don’t Pick Up Your Baby at Night, You’ll Spoil Them”

You cannot spoil a newborn by responding to them. This idea comes from outdated behavioural theories that don’t hold up for babies this young. Newborns have no capacity to manipulate you, they’re simply communicating the only way they can. Crying at night usually means hunger, wind, a wet nappy, being too hot or cold, or just needing contact and reassurance after nine months of constant closeness in the womb.

Responding consistently to a newborn’s cries actually supports healthy attachment and, longer term, tends to help babies feel secure enough to settle more easily as they grow. That said, if you’re using a dummy or trying gentle settling techniques recommended by your health visitor, it’s fine to give your baby a minute or two to see if they resettle on their own before rushing in, every baby and every night is a little different.

Myth #3: “Put Your Baby to Sleep in Total Silence”

Inside the womb, babies are surrounded by a constant whoosh of blood flow, your heartbeat, and muffled outside noise, it’s actually pretty loud in there, somewhere around 70 to 80 decibels by some estimates. Complete silence after birth can feel unfamiliar rather than soothing, and household noise (doorbells, older siblings, the dishwasher) can startle a baby sleeping in dead quiet.

A steady white noise sound, or gentle continuous background noise, can help mask sudden household sounds and support sleep. If you use a white noise machine or app, keep the volume moderate (roughly the level of a shower running), place it a reasonable distance from the cot rather than right next to your baby’s head, and avoid running it all night at high volume, as very loud or constant close-range noise isn’t recommended for developing hearing.

Myth #4: “The Bassinet is the Only Safe Sleep Spot”

A bassinet is one safe option, but it’s not the only one. What actually matters for safe sleep, according to guidance from organisations like The Lullaby Trust and NHS, is that your baby sleeps on a firm, flat, waterproof mattress that fits the sleep space snugly, on their back, in a smoke-free environment, in a cot, crib, bassinet or Moses basket that meets current safety standards.

Ideally your baby sleeps in the same room as you for at least the first six months, day and night naps included, as this is linked to a reduced risk of SIDS. Avoid loose bedding, pillows, cot bumpers and soft toys in the sleep space for young babies. If you’re choosing between a crib, bassinet, or playard/travel cot, the right one is whichever meets safety standards and suits your space and budget, not a single “correct” answer.

Myth #5: “Put Cereal in the Bottle for Longer Sleep”

This is genuinely one of the more concerning bits of old-fashioned advice still doing the rounds, and it’s worth being firm about: don’t add cereal or solid food to a young baby’s bottle unless a doctor has specifically told you to for a medical reason. Babies’ digestive systems aren’t ready to process solids safely until around 6 months, and thickened milk in a bottle can be a choking hazard as well as affecting how well they absorb nutrients from milk.

There’s also no solid evidence it reliably improves sleep. Babies wake at night for real physiological reasons, hunger, growth spurts, discomfort, so a thicker feed isn’t a shortcut around that. If sleep feels genuinely unmanageable, talk to your health visitor or GP rather than trying home remedies like this.

Myth #6: “Keep the Room Cold for Better Sleep”

A cool room can help adults sleep, but newborns can’t regulate their body temperature as efficiently as older children or adults, so “cold” isn’t the goal, “comfortably mild and steady” is. Most guidance suggests aiming for a room temperature of around 16 to 20 degrees Celsius, and dressing your baby appropriately for that (a room thermometer is a genuinely useful, cheap bit of kit for this).

Overheating is actually a known risk factor for SIDS, so the real message isn’t cold versus warm, it’s avoiding both extremes. Check your baby’s chest or the back of their neck (not their hands or feet, which are often cool anyway) to gauge if they feel too hot or too cold, and adjust layers rather than piling on blankets.

Myth #7: “Sleep Training is the Only Solution”

Formal sleep training methods work well for some families once a baby is a bit older, generally from around 4 to 6 months onwards, and can be discussed with your health visitor if you’re considering them. But for newborns, structured sleep training isn’t appropriate or recommended, their frequent waking is developmentally normal, not a habit that needs breaking.

Even once your baby is older, there isn’t one single right approach. Some families find gentle, gradual methods suit them better than more structured ones, and some don’t want to do any formal sleep training at all. What matters more than picking “the” method is finding an approach you can actually sustain, that fits your baby’s temperament, and that you and your partner (if you have one) are both comfortable with.

Myth #8: “Feeding Right Before Bed Guarantees a Longer Sleep Stretch”

A full tummy can genuinely help a baby settle, and a “dream feed” (topping up a sleepy baby before you go to bed yourself) works well for some families. But it’s not a guarantee, and it’s not something to stress over if it doesn’t extend sleep for your particular baby.

Newborns wake for all sorts of reasons beyond hunger: wind, an uncomfortable nappy, being startled by their own startle reflex (moro reflex), needing comfort, or simply because their sleep cycles are much shorter than ours, often around 50 to 60 minutes compared to 90 minutes in adults. Waking between cycles is completely normal newborn behaviour, not a feeding problem to solve.

Myth #9: “Newborns Should Be Sleeping Through the Night by Now”

This is probably the single most stressful myth new parents encounter, usually delivered by a well-meaning relative asking “is he sleeping through yet?” at three weeks old. The honest answer is that “sleeping through the night” isn’t a realistic or even healthy expectation for a newborn.

Newborn stomachs are tiny, roughly the size of a marble at birth and growing to about the size of an egg by one month, so frequent feeds (including overnight) are necessary for weight gain and development, not a sign you’re doing something wrong. Most babies don’t start consolidating longer stretches of night sleep until somewhere between 3 and 6 months, and even that varies hugely from baby to baby. If you’re worried about your baby’s feeding or weight gain specifically, that’s worth raising with your health visitor.

Trust What You’re Actually Seeing

You’ll get advice from every direction in these early months, and some of it will contradict itself within the same conversation. The most reliable approach is to hold general safe sleep guidance (back to sleep, firm flat mattress, smoke-free room, room-sharing, no loose bedding) as non-negotiable, and then treat everything else, timing, routines, settling methods, as things to adapt based on what you actually see in front of you.

You know your baby’s cues better than any article, relative, or app. If something you’re trying isn’t working after a fair go, it’s fine to drop it and try something else. And if anything about your baby’s sleep, feeding, or behaviour genuinely worries you, don’t wait, speak to your health visitor, GP, or midwife. They’d rather answer a question that turns out to be nothing than have you lose sleep over it (literally).