Rolling Over!
Your baby is becoming mobile! The first rolls from tummy to back are coming, and everything within reach ends up in their mouth. A little explorer has arrived.
Development
- Rolls from tummy to back: the first major motor milestone
- Reaches purposefully and brings toys to their mouth
- Cause and effect: Discovers that actions produce results (shakes rattle → sound!)
- Steady head control in all positions
- Mental leap (week 19): "World of events". Major development
Growth
- Boys: Average 14.8 lbs / 25.6 in (6.7 kg / 65 cm)
- Girls: Average 14.1 lbs / 24.8 in (6.4 kg / 63 cm)
Sleep
- 12–15 hours per day
- 4-month sleep regression: Sleep patterns change. Your baby sleeps more lightly and wakes more often. This is normal and will pass
- The brain is reorganizing sleep cycles, and consistent routines are especially important now
Feeding
- 5–7 feeding sessions per day
- Your baby may become distracted during feeds: a calm, dimly lit environment helps
- Solid foods are not yet appropriate. The WHO and AAP recommend starting solids around 6 months of age
- Vitamin D: Continue with 400 IU (10 micrograms) daily
Good to Know
- The 4-month sleep regression is tough, but it is a developmental phase, not a setback
- Your baby can roll unexpectedly: never leave them unattended on a changing table
- Everything goes into the mouth now: this is how your baby explores the world
Activity Tips
Place toys just out of reach on the floor. Watch your baby stretch, try to reach, and maybe roll for the first time! Keep the camera ready.
Explore on Babysential
- Sleep Tracker. Important to track during the regression
- Milestones. Log that first roll!
- Baby. All baby guides and tools
Tip: Keep routines consistent through the regression. It passes, usually within 2–4 weeks.