Newborn won't sleep unless held: why, and safe ways through it

If your newborn sleeps soundly in your arms and wakes the moment they touch the cot, you're in very good company. The NHS says that, particularly in the early weeks, your baby may only fall asleep in your or your partner's arms. It's normal, it isn't a habit you've created, and it usually eases as your baby grows. The one firm rule is about you: hold your sleeping baby only while you're awake, and if you might fall asleep, put them on their back in their own cot or bassinet first.

Why does my newborn only sleep when held?

Several things come together in the first weeks:

• The fourth trimester. NCT, the UK parenting charity, describes the first three months after birth as the fourth trimester. It says babies have come from a womb where they were secure and cosy and never hungry, and are hardwired to expect constant close attention from a parent or caregiver.
• Closeness calms them. Unicef UK's Building a happy baby guide says new babies have a strong need to be close to their parents, and that cuddling next to your skin lets them smell you and hear your heartbeat, which comforts and calms them.
• The startle reflex. The AAP's newborn reflexes guide describes the Moro (startle) reflex: if a baby's head shifts abruptly or falls back, or they hear something loud, they fling out their arms and legs, then bring their arms together, and may cry. It usually peaks in the first month and starts to disappear after about 2 months. Being lowered into a cot can set it off.
• Light, active sleep. Tresillian, the Australian parenting service, says young babies need lots of active (dreaming) sleep, when they move their arms and legs, suck and even smile. In quiet sleep they barely move and can be hard to rouse. A baby put down in active sleep often wakes.

In your arms, your baby has warmth, movement, your smell and your heartbeat. A flat, still cot is a big change by comparison.

Is it OK to let my newborn sleep on me?

Yes, while you're awake. Unicef UK calls the idea that babies get spoilt by too much attention a myth, and says that when babies' needs for love and comfort are met, they are calmer and grow up more confident. Contact naps are a reasonable way to get through the early weeks, and many families mix them with cot sleeps.

What makes a contact nap safe is the adult, not the position. Stay awake and alert, keep your baby's face visible and their nose and mouth clear, and keep their chin off their chest. Red Nose in Australia says falling asleep while lying down with your baby on your chest is unsafe, because it places your baby face down. See contact napping for setting up safer contact naps and sharing the load.

How do I put my baby down without waking them?

Transfers don't always work, and that's normal. These steps improve the odds:

1. Wait for quiet sleep. Tresillian says that in quiet sleep babies won't move much and might be hard to rouse. Look for limp arms, a relaxed face and slow, even breathing. That often takes a while after your baby first drifts off.
2. Keep them close as you lower them. Hold your baby against your body until they're nearly on the mattress, supporting their head so it doesn't drop back, which can trigger the startle reflex.
3. Lay them on their back. On a firm, flat mattress with nothing loose in the cot.
4. Keep a hand on them for a moment. A gentle, steady hand on the chest or tummy, then lift it away slowly.
5. Pause before you pick them up. Tresillian says babies often stir and may cry at the end of a sleep cycle, which it says lasts about 50 minutes and can be as short as 30–40 minutes, and suggests waiting a moment or resettling before getting your baby up.
6. If they wake fully, that's fine. Settle them and try again, or enjoy the rest of the nap held and try the cot next time.

Many families find one cot nap a day is a good place to start, often the first nap of the morning. For gentle ways to settle in the cot, see responsive settling and shush-pat.

Should I warm the cot first?

No heat sources, ever. Red Nose's bedding advice in Australia says never to use electric blankets, wheat bags or hot water bottles for babies. The Lullaby Trust's cold-weather advice says not to use hot water bottles in any baby sleep space because they can make your baby too hot, and to keep the cot away from radiators and other heat sources. The NHS SIDS guidance says babies should never sleep with a hot water bottle or electric blanket.

Instead, dress your baby for the room. Red Nose's dressing guide in Australia says to feel your baby's tummy, which should feel warm; the NHS and the Lullaby Trust say to feel the chest or the back of the neck. Cool hands and feet are normal. See dressing your baby for sleep.

Can swaddling or a dummy help my baby sleep in the cot?

Swaddling

The AAP's swaddling guide says swaddling can be an effective way to calm babies and promote sleep, and many parents find it helps a baby whose startle keeps waking them. Done safely, it means a thin wrap, firm at the chest and loose at the hips, and always on the back.

Stop swaddling (wrapping) as soon as your baby shows signs of trying to roll. Red Nose in Australia also says to stop by 3 months, whichever comes first, and the AAP notes some babies start trying to roll as early as 2 months. The AAP also says never to use weighted swaddles. See swaddling for step-by-step wrapping and product advice.

Dummies

Some babies want to suck to sleep, and the AAP's safe sleep guide says dummies help reduce the risk of SIDS, even if they fall out after your baby is asleep, and you don't need to put one back in. If you're breastfeeding, the AAP says to wait until breastfeeding is established. See dummies for timing and safe use.

Is babywearing a safe way to get naps in?

A sling or carrier can give your arms a break while your baby stays close. The Lullaby Trust says sling accidents are most likely when a baby's airway is blocked, by their chin resting on their chest or by the parent's skin or clothes covering their mouth and nose. Both the Lullaby Trust and Red Nose's sling guide use the TICKS checks:

Red Nose says to follow the sling's instructions and not to use cocoon-like or womb-shaped products. The Lullaby Trust says feeding while moving about with your baby in a sling is unsafe, especially under 4 months, so take your baby out to feed. The AAP says that if your baby falls asleep in a sling or carrier, move them to a firm sleep surface on their back as soon as possible.

What if I might fall asleep while holding my baby?

This is the real danger in these weeks. Holding a sleeping baby at 3 am, on a sofa, after weeks of broken nights, is exactly when parents doze off.

• Never on a sofa, armchair or recliner. Red Nose says co-sleeping on a sofa or couch is extremely dangerous, and to never sleep with your baby on a sofa, armchair or recliner, no matter how tired you are. It explains that soft cushions, gaps and sloped edges can trap a baby's face or body, and a sleeping adult may not notice. The AAP says the risk of sleep-related death is up to 67 times higher when babies sleep with someone on these surfaces, and the NHS says not to sleep on a sofa or in an armchair with your baby.
• Put your baby down before you get drowsy. Red Nose says the safest thing is to place your baby in their own safe sleeping space before you fall asleep. Their own cot or bassinet in your room for at least the first 6 months, day and night, is the safe place.
• Feeding in bed at night. The AAP says that if you bring your baby into bed to feed or comfort them, put them back in their own sleep space before you go to sleep, and if you might doze, remove pillows and blankets that could cover your baby. See bed-sharing.
• Take turns. The NHS suggests asking a partner to help, and if you're on your own, asking a friend or relative to stay for a few days so you can sleep. One adult holds the baby while the other sleeps properly, then swap.
• Know your risky moments. Night feeds, early mornings, and any time you've had alcohol or medicine that makes you sleepy. Put your baby in the cot instead, or hand them to another adult who is awake.

How long will my baby only sleep when held?

It varies, so there's no date to circle. The AAP says the startle reflex starts to fade after about 2 months, Sleep Foundation says newborn sleep starts to consolidate around 2 months, and NCT describes the fourth trimester as the first three months. Many families find cot sleeps get easier somewhere in those first months, while some babies keep preferring to be held for longer. Practising one cot sleep a day keeps the door open without a battle.

When should I get help?

Call your local emergency number (000 in Australia, 999 in the UK, 911 in the US) now if your baby:

• is floppy, much sleepier than usual, hard to wake or can't be woken
• is struggling to breathe, grunting, or sucking in under the ribs or at the tummy
• has blue, grey, very pale or blotchy skin, lips or tongue
• has a weak, high-pitched or continuous cry, or a cry that doesn't sound like their normal cry
• is under 3 months and has a temperature of 38°C (100.4°F) or higher
• is found slumped with their chin on their chest in a sling or seat and isn't breathing normally

These come from the NHS urgent-help guide, and the slumping point follows the Lullaby Trust's warning that a chin on the chest can block a baby's airway. If you find your baby slumped, lift them out and lay them on their back on a firm, flat surface straight away.

Get medical help today if your baby is refusing feeds or feeding much less than usual, or has fewer wet nappies than usual.

Talk to your GP or child-health nurse if your baby will only ever sleep held and you're struggling, or cries a lot and is hard to soothe (see colic and PURPLE crying). a parenting support service (Tresillian or Karitane in Australia, your health visitor in the UK, your pediatrician's office in the US) can also help you plan safer nights.

If you have thoughts of harming yourself or your baby, put your baby safely in their cot and call a crisis line (Lifeline on 13 11 14 in Australia, Samaritans on 116 123 in the UK, 988 in the US) or your local emergency number (000 in Australia, 999 in the UK, 911 in the US) now.