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Month 1 of 12

1 Month Old

The first month is mostly reflexes and recognition — your newborn is adjusting to the world outside the womb, and most of what looks like a skill is still an automatic reflex rather than a deliberate action.

Last reviewed: August 8, 2026

Reflexes do most of the work this month: the startle (Moro) reflex, the rooting reflex that turns a baby's head toward a touch on the cheek, and the strong grasp reflex in tiny fists are all present from birth and fade on their own over the following months. What looks like "tracking" or "reaching" right now is usually still involuntary. The most useful thing to watch for isn't a skill at all — it's whether your baby is generally alert during awake stretches, feeds with reasonable effort, and settles when comforted.

Motor & Physical

  • Lifts head briefly during tummy time
  • Makes jerky, quivering arm and leg movements
  • Hands stay curled into fists most of the time
  • Turns head toward a touch on the cheek (rooting reflex)

Cognitive

  • Focuses best on faces and objects 8–12 inches away
  • Briefly follows a slowly moving object with their eyes
  • Prefers high-contrast patterns and faces over plain surfaces

Language & Communication

  • Startles at loud, sudden sounds
  • Cries to signal hunger, discomfort, or overstimulation
  • Makes small throaty or grunting sounds when settled

Social & Emotional

  • Calms when picked up or spoken to softly
  • Watches your face closely during feeds
  • Begins to briefly quiet at the sound of a familiar voice

Feeding & sleep at this age

Breastfed newborns typically feed 8–12 times a day; formula-fed babies usually go closer to every 2–3 hours. Sleep totals 14–17 hours a day, but it's spread across short stretches of 2–4 hours — day and night aren't sorted out yet, and that's expected rather than a problem to fix this early. Weight loss of up to about 10% in the first days after birth, followed by steady regain by around two weeks, is typical and usually checked at early pediatrician visits.

When to check in with your pediatrician

Not lifting their head at all during tummy time, no reaction to loud sounds, very weak or difficult feeding, a baby who seems either extremely stiff or extremely floppy, or jaundice (yellowing of skin or eyes) that appears to worsen rather than fade.

This is general information, not medical advice — if anything about your baby's development concerns you, talk to your pediatrician.

Born early? Milestones like these are usually tracked by corrected agerather than chronological age. Add a due date in the calculator below to see your baby's corrected age automatically.

Questions about 1 month old

My 1-month-old doesn't do all of this yet — is that a problem?

Not necessarily. These are typical ranges, not a checklist every baby clears on day one of the month. Babies born even a few days apart can look noticeably different at this stage, and preterm or lower-birth-weight babies especially need more time. Mention anything that worries you at the next well-baby visit rather than trying to self-diagnose from a list.

My baby was born early — should I use their actual age or a different one?

For a premature baby, developmental milestones are usually tracked by corrected age (their age counted from the due date, not the birth date) rather than chronological age. Our calculator's due-date field works this out automatically, and it's the more medically relevant number for comparing your baby against ranges like the ones on this page.

How much of what my newborn does is actually a reflex versus a real skill?

At one month, almost all of it is reflex. The rooting reflex, the grasp reflex, and the Moro (startle) reflex are present from birth and gradually fade over the next few months as more voluntary control develops. A pediatrician checks these reflexes specifically at newborn visits because their presence and their fading on schedule both matter.

Is it normal for a newborn to seem to sleep almost all day?

Yes — 14 to 17 hours of total sleep a day is typical in the first month, and it's normal for very little of it to happen in one long block. Newborn sleep cycles are shorter than adult ones, and the day/night rhythm (circadian rhythm) hasn't developed yet; that usually starts to organize itself over the next couple of months.

Written and maintained by Manoj Rana, based on CDC, WHO, and AAP developmental guidance — not medically reviewed.

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