Two things make a baby's night dangerous: where they are put down, and how far the exhaustion has gone. Both are preventable.

The crying has a shape, and you are somewhere on it

Newborn crying is not random and it is not a verdict on your parenting. Across cultures, feeding methods and continents, it follows the same curve: it climbs from birth, peaks somewhere around six weeks, and then falls away. Knowing that changes how the fourth week feels, because the thing nobody tells you is that it is still getting louder — and that it is going to stop.

Six things about this crying surprise people, and all six are normal: it comes in bouts that start for no reason, it resists everything you try, the baby can look like they are in pain when they are not, it can go on for hours, it clusters in the late afternoon and evening, and it peaks and then ends. A baby who cries inconsolably for two hours in the evening, feeds well, gains weight and has normal nappies is usually a baby doing exactly what the curve says.

What to try, and what to do when nothing works

Work down this list rather than rifling through it — babies need a few minutes to respond, and switching every thirty seconds looks to them like more chaos.

1. The basics, in order. Offer a feed, wind them upright over your shoulder, check the nappy, check whether they are too hot or too cold — a hand on the chest or the back of the neck, not the feet.
2. Skin, movement, sound. Skin-to-skin on your chest, held upright; walking, rocking or a sling; a steady shushing or white noise about as loud as the crying. Babies were not designed to be put down in silence.
3. Change the whole scene. Step outside with them, even for two minutes, even in the cold. Cool moving air and different light interrupts a crying bout more often than anything else on this list.
4. A warm bath, or an unhurried undress. Not for hygiene — for the change of sensation.
5. Then accept that it may not work. Some bouts are unsoothable. Holding a crying baby calmly, or putting them down safely and standing next to the cot, is a complete and successful response. You are not failing to solve a problem; you are keeping a baby company through one.

The plan for the moment you cannot take it any more

This section is the whole reason the page exists. Nearly every baby who is shaken is shaken by someone who loves them, at the end of a long cry, in a second that cannot be taken back. The people it happens to are not monsters — they are exhausted, and they had no plan. So make one now, while it is daylight and nobody is crying.

1. Learn your own warning signs. Jaw clenching, arms tightening, heat rising in your chest, the thought "if you don't stop —". That feeling is not a sign that you are dangerous. It is the signal to use the plan.
2. Put the baby down. On their back, in the cot or basket, with nothing else in it. That is safe. A baby crying alone in a safe cot for ten minutes comes to no harm at all.
3. Leave the room and shut the door. Set a timer for ten minutes. Wash your face with cold water, sit down, put your own headphones on, step into the garden or onto the landing.
4. Tell someone. Phone your partner, a friend, your parent, a helpline, a midwife, anyone — the sentence "I'm at the end of what I can do" is the most protective thing a tired parent ever says. Nobody will take your baby away for saying it. Support is the actual response.
5. Go back when you are calmer, not when the timer says so. Then check the basics again from the top.

Safe sleep: three rules and the reasons behind them

Everything below sits under three sentences. If you only remember these, you have the great majority of the benefit.

• On their backFor every sleep, night and nap, from the first day until they can roll over on their own. Side-lying is not a safe alternative — babies roll from their side onto their front. Babies do sleep more deeply on their front, and that is precisely the danger: they rouse less easily from a rebreathing or overheating situation. The advice to sleep babies on their back is the single change that halved sudden infant death.
• Alone on a flat, firm surfaceA cot, crib, basket or travel cot, with a firm flat mattress and a fitted sheet — and nothing else. No pillow, duvet, quilt, cot bumper, sleep positioner, wedge, cushion, fur or soft toy. Keep their head uncovered: a thin blanket tucked in no higher than the shoulders, or better, a well-fitting baby sleeping bag.
• In your room, for the first six monthsTheir own surface, next to your bed, for both night sleep and naps if you can. Room-sharing without bed-sharing is associated with a substantially lower risk, and it makes the night feeds easier, which is the point.

The sofa, and the honest version of bed-sharing

Falling asleep with a baby on a sofa or armchair is the most dangerous sleep situation there is — many times riskier than a bed — because a baby slips into the gap between cushions, or between you and the back of the seat, and cannot get out. This matters more than any other detail here, because the sofa is where an exhausted parent ends up at 4am while trying to avoid falling asleep in bed.

Bed-sharing is not one risk, it is several, and being clear about which ones matters more than a blanket instruction. The risk becomes much higher if anyone in the bed has drunk alcohol, smoked, or taken any medication or drug that makes them sleep more heavily; if the baby was born prematurely or small; in the first weeks; or if the surface is a sofa, armchair, waterbed or beanbag. If any of those apply, the baby should sleep on their own surface. If none of them apply and you plan to feed lying down, make the bed safe first rather than hoping you will stay awake.

The details that catch people out

• Car seats, bouncers and inclined "sleepers" are not sleep surfaces. A baby's head can slump forward in a seated position and close their own airway. Move them onto a flat surface when the journey ends, break long drives, and never use a product that props a baby at an angle to sleep, however it is marketed.
• Overheating is a real risk. Aim for a room around 16–20°C, one more layer than you are comfortable in, no hat indoors, and no sleeping next to a radiator or in direct sun. Check the chest or the back of the neck — cool hands and feet are normal and are not a reason to add layers.
• Smoke is one of the largest risks you can remove. Smoking in pregnancy and smoke around a baby both raise the risk sharply, including from clothes and furniture. A smoke-free home and car, and nobody smoking then holding the baby, is worth as much as most of this list.
• Breastfeeding lowers the risk, even partly and even for a few weeks — worth knowing for its own sake, not as another thing to feel guilty about if it did not work out.
• A dummy at sleep onset is associated with lower risk. Offer it if you want; do not force it, do not put it back once they are asleep, and never attach it to a cord or clip in the cot.
• Stop swaddling once they show any sign of rolling, and never swaddle a baby who is put down on their front or side. Keep it firm across the chest and loose around the hips.
• Monitors, movement mats and oxygen socks do not prevent sudden infant death. None have been shown to, they generate false alarms, and their real danger is the false confidence that lets an unsafe surface feel acceptable. Fix the surface instead.
• When they can roll themselves, keep putting them down on their back and then let them find their own position — you do not have to turn them back all night. Keep the cot empty and stop the swaddle.
• Flat spots on the head are cosmetic and they resolve. "Back to sleep, tummy to play": plenty of supervised tummy time while they are awake, alternate which end of the cot they look towards, and hold them upright often.

What newborn sleep is actually like

A large share of the risky shortcuts on this page are bought with the promise of longer sleep — the weighted swaddle, the incline, the front-sleeping, the sofa. So it is worth saying plainly what normal looks like, because most of the pressure comes from comparison with something that does not exist.

• Newborns wake to feed, and that is protective. Small stomachs, fast growth, and — importantly — babies who rouse easily are safer babies. Frequent waking in the early weeks is the system working, not a fault to be engineered out.
• Sleep comes in short blocks, day and night, and the night/day distinction is learned. It usually starts to sort itself out somewhere in the second or third month, helped by daylight and activity in the day and a dull, boring, dark night.
• "Sleeping through the night" is a moving target and often means a five-hour stretch. Some babies do it at eight weeks, plenty do not for a year, and both are within normal. Waking again after a period of longer sleep is extremely common and is not a regression in any real sense.
• Every sleep counts as a sleep. The rules — on the back, own flat firm surface, nothing in it — apply to the ten-minute nap in the day, at grandparents', in the holiday flat. The unfamiliar setting is where safe sleep quietly slips.
• Weighted sleeping bags, weighted swaddles and any product that restricts chest movement are not recommended. The mechanism they sell — deeper sleep, less rousing — is the exact opposite of what makes a small baby safe.
• Sleep training is a question for later. Approaches that involve leaving a baby to cry are debated for older infants and are not appropriate for the newborn weeks. Nothing you do to comfort a six-week-old is building a bad habit.

When crying is not the curve

Everything above says that long, hard crying is usually normal. That is true, and it is also why a genuinely ill baby gets missed. The signal is not how loud it is — it is a change in the pattern, and especially crying that comes with any of these.

The other patient in the room

Sleep deprivation at this level is not a lifestyle complaint. It slows reactions like alcohol does, it makes anger arrive faster and from further away, and it is the single condition under which every mistake on this page becomes more likely. Treating your own sleep as a safety measure rather than a luxury is not indulgence.

• Split the night deliberately. One adult takes until 2am and the other takes after, so each gets one unbroken block. Two people each half-awake all night is the worst of both.
• Take the offered help in the form you actually need. Not "come and hold the baby while I clean" — "come at 9am and watch her while I sleep for two hours."
• Guard the visitors. Nobody with a cold, nobody smoking, and nobody who needs entertaining. It is completely reasonable to say the baby is asleep and so are you.
• Know what to look for in yourself and your partner. Low mood, dread, constant crying, rage, being unable to sleep even when the baby does, or feeling nothing for the baby. Postnatal depression and anxiety are common, treatable, and affect fathers and non-birthing partners too — roughly one in ten.
• Frightening intrusive thoughts are common and are not intent. Sudden unwanted images of harm come to a large share of new parents; they are a symptom of an alarmed, exhausted brain, and they get better with help. Saying them out loud to a midwife or doctor is safe.
• Ask early rather than at the point of collapse. If you are counting down the hours until someone comes home, that is already the moment to say something.

The drill: 16 nights

Sixteen ordinary moments — a grandmother's advice, a sofa at 4am, a car seat you don't want to disturb, an evening that will not end. Most have an instinctive answer that raises the risk. Pick your move; every answer explains why.

The card for the fridge

Print it, and show it to everyone who will ever look after the baby — that is the part that does the work.

🖨️ Print the card