Newborn falls asleep feeding: why, and what to do

What's probably happening

Sucking is hard work for a newborn. Add the warmth of skin-to-skin and a steady rhythm, and they fall asleep before they're full.

In rough order of likelihood:

• Newborn stamina. Common in week 1–2 and after a hard day. The baby tires before the feed finishes.
• Slow milk flow or slow let-down. Active sucking with little reward — the baby loses interest.
• They've actually had enough. A short feed can be a full feed. Output over 24 hours tells you, not the clock at the breast.
• Too warm or too swaddled. Body heat plus rhythmic sucking puts them under.

When to escalate

See a doctor when you can:

• Not back to birth weight by 2 weeks.

Get immediate medical care:

• Fewer than 5 heavy wet nappies in 24 hours after day 5.
• Brick-dust orange or red colour in the nappy after day 4.
• Fever > 38°C in a baby under 3 months.