Age Guide

All about your 3 month old

12 weeks of progress: conversations in coos, tummy time push-ups, and a daily rhythm starts to take shape. Here's what to expect.

Month 3 can bring hand discovery, the start of a more predictable daily flow, and social smiling. Use the buttons below to jump to each section.

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Topic

Sleep at 3 months

What a day might look like at 3 months

Here's a sample day at 3 months. If yours looks different, that's normal. Naps especially tend to vary baby to baby and day to day.

7:00 AM
Morning rise · feed within 30 min
8:15 AM
Nap 1 · 1.25 hrs (1.25-hr wake window)
9:30 AM
Feed & play
11:00 AM
Nap 2 · 1.5 hrs (1.5-hr wake window)
12:30 PM
Feed & play
2:15 PM
Nap 3 · 1.5 hrs (1.75-hr wake window)
3:45 PM
Feed & play
5:30 PM
Nap 4 · 30 min (1.75-hr wake window)
6:00 PM
Feed & play
7:30 PM
Bedtime routine
8:00 PM
Asleep · (2-hr wake window)
Overnight · 1 or more feeds still common at this age
14 - 17 hrs
Total daily sleep
10 - 12 hours at night plus 4 - 5 hours across daytime naps.
4 - 5
Naps per day
Still short and variable in length.
60 - 120 min
Wake windows
Shorter in the morning, longer before bedtime.
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Topic

Development at 3 months

3-month milestones to watch for

Every baby develops on their own timeline, but here are the milestones most 3 month olds hit. Use it as a gentle guide, not a checklist to stress over.

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Motor

  • Lifts head at 45 degrees and pushes chest off the floor during tummy time
  • Briefly grasps toys placed in hand and looks at them
  • Brings hands to mouth
  • May show early signs of rolling, like reaching for toys while on tummy
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Communication

  • Cooing and babbling sounds begin
  • Cries with distinct sounds for different needs
  • Witching-hour fussiness typically resolves by 12 weeks
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Cognitive

  • Tracks moving objects with eyes
  • Turns head toward sounds
  • Recognizes familiar people at a distance
  • Color vision is coming online, sees brights more than pastels
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Social & Emotional

  • Social smiles, especially at familiar voices
  • Makes intentional eye contact
  • Watches faces and expressions closely
  • Smiles back when you smile
Heads up: If many of these milestones haven't shown up, your baby seems to have lost a skill they had, or something feels off, reach out to your healthcare provider. Trust your instincts — you know your baby best.
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Topic

Feeding at 3 months

Feeding at 3 months, by the numbers

Breast milk or formula is still your baby's only nutrition. Feeds may space out as your baby's belly grows.

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8 - 12
Feeds across 24 hours
With longer stretches starting to appear at night.
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3 - 4 hrs
Between feeds
During the day.
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3 - 6 oz
Per feeding
Daily volumes fall between 24 - 32 ounces per day.
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Good to know

Some feeds will be longer, some shorter. That's normal and usually not a sign that something's off.

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