Newborn only sleeps when held: why, and what to do

What's probably happening

Newborns sleep best in contact — warmth, motion, smell, breathing rhythm. The first weeks are sometimes called the fourth trimester for this reason. Wanting to be held is normal, not a habit you're creating.

When the transfer fails, the cause is usually one of these:

• Not in deep sleep yet. Newborns take about 10 minutes after eyes close to enter deep sleep. Earlier than that, any change wakes them.
• Temperature drop. Going from your warm body to a cool cot (crib) is a sensory shock.
• Vestibular change. Held-and-still to lying-flat can trigger the startle reflex.
• Loss of containment. Arms loose, no pressure on the body.

When to escalate

If you need a break:

• Put the baby on their back in the cot (crib). Step out for 5 minutes. Hand over to a partner if one is in the house. Never sleep with the baby on a sofa or armchair if you're exhausted — transfer them to the cot first.

Get immediate medical care:

• Fever > 38°C in a baby under 3 months.
• Visible pain every time the baby is laid flat — arching, screaming, going stiff the moment they're placed.
• Repeated forceful vomiting, especially when laid flat or after every feed.