Baby Milestones

Your month-by-month companion

Month 4

Baby may roll for the first time and shows increasing interest in the world. Sleep regression is common.

Quick Reference

Sleep

12-16 hours

Feeding

4-6 oz (120-180 ml) per feeding, 24-32 oz (710-950 ml)/day

Naps

3-4 naps

Wake Window

1.5-2.5 hours

Talk to your doctor if baby...

•Does not watch things as they move
•Does not smile at people
•Does not bring hands to mouth
•Cannot hold head steady
•Does not make sounds
•Does not push down with legs when feet are on a hard surface
ExpectedWhat most babies do
  • •Hold head steady without support when held upright
  • •Push up onto elbows/forearms during tummy time
  • •Bring hands to mouth reliably
  • •Hold objects placed in hands
  • •Smile spontaneously, especially at people
  • •Make cooing sounds (oooo, aahh)
  • •Turn head toward your voice
VariesWhat some babies do
  • •Roll from tummy to back
  • •Reach for toys (may not grasp yet)
  • •Chuckle when you play with them
  • •Open mouth when seeing bottle or breast (anticipation)
  • •Bear weight on legs when held upright

What's Next

Month 5 · Month 5 typically brings sitting with support, reaching for objects, and recognizing their own name.