What can a 4 month old do?
- Grasps objects and brings them to mouth
- Props up on arms while on tummy
- May start rolling
- Starts making varied sounds
- Begins distinguishing colors
- Reaches for and catches toys
- May roll from tummy to back
- Expresses emotions more clearly
Feeding
- Too early for solids — wait for month 6
- Growth spurt may occur
- Feeding frequency may drop but amounts increase
- Mouthing isn't a sign of readiness for solids
- Night feeds may still be necessary
- Breast milk or formula is still the only food
Sleep
Sleeps 14-15 hours a day with 2-3 daytime naps. Once baby starts rolling, stop swaddling; still put them down on their back.
Tips for you
- Offer safe toys
- Take baby to different environments
- Start thinking about sleep training
- Spend time on the floor with baby — freedom to move
- Prepare teething rings, teething may start
- Describe daily routines — builds a sense of security
Tip of the month: Make eye contact and different facial expressions — baby will try to imitate.
Frequently asked questions
How much should a 4 month old weigh?
A typical weight range for a 4 month old is 5.7 - 8.7 kg, with length around 58 - 66 cm and head circumference around 39 - 44 cm. Following their own growth curve matters more than any single measurement.
How much does a 4 month old sleep?
Sleeps 14-15 hours a day with 2-3 daytime naps. Once baby starts rolling, stop swaddling; still put them down on their back.
What should a 4 month old be doing?
Grasps objects and brings them to mouth. Props up on arms while on tummy. May start rolling. Starts making varied sounds. Every baby develops at their own pace, and differences of a few weeks are normal.
Every baby develops at their own pace. This is general guidance; talk to your pediatrician about any concerns.
