4-Month-Old Baby Guide

Welcome to the exciting fourth month of your baby's life! At 4 months, your little one is becoming more active, alert, and socially engaged. This is also a critical period for sleep development, often marked by the infamous 4-month sleep regression. Now is an ideal time to focus on establishing healthy sleep habits and consider more formal sleep training methods to help your baby - and you - navigate this challenging but important phase.

Daily Schedule

  • 6:00 AMWake up and feed
  • 7:00 AMPlaytime and interaction
  • 8:30 AMMorning nap
  • 10:00 AMWake up and feed
  • 11:00 AMTummy time and active play
  • 12:30 PMEarly afternoon nap
  • 2:00 PMWake up and feed
  • 3:00 PMSensory play and outdoor time
  • 4:30 PMLate afternoon nap (catnap)
  • 5:30 PMWake up and feed
  • 6:30 PMBath time and bedtime routine
  • 7:30 PMFinal feed and bedtime
  • 11:00 PMOptional dream feed (if needed)

Developmental Milestones

Your 4-month-old is reaching significant developmental milestones. Here are key achievements to look out for, with a special focus on sleep-related progress:

Physical Development

  • Pushes up to elbows during tummy time
  • Rolls from tummy to back (and sometimes back to tummy)
  • Brings hands to mouth
  • Grasps and shakes toys

Cognitive Development

  • Responds to affection
  • Reaches for toy with one hand
  • Uses hands and eyes together
  • Recognizes familiar people and things at a distance

Social and Emotional Development

  • Smiles spontaneously, especially at people
  • Enjoys playing with people
  • Copies some movements and facial expressions
  • Babbles with expression and copies sounds they hear

Sleep Development

  • Transitions from newborn sleep patterns to more adult-like sleep cycles
  • May experience the 4-month sleep regression
  • Can typically sleep 6-8 hours at night without feeding
  • Requires about 12-16 hours of sleep in a 24-hour period, including naps

Feeding Guidelines

Proper nutrition remains crucial for your baby's growth and can significantly impact sleep patterns. Here are feeding guidelines for your 4-month-old:

Breast Milk or Formula

Frequency: Every 3-4 hours

Amount: 4-6 ounces per feeding

Night feedings may decrease or stop as sleep consolidates

Solid Foods Introduction

Frequency: Discuss with pediatrician

Amount: N/A

Some babies may be ready to start solid foods, which can impact sleep patterns

Feeding and Sleep Connection

Frequency: Observe baby's cues

Amount: N/A

Work on separating feeding from sleep onset to promote independent sleep skills

Activity Suggestions

Engaging in age-appropriate activities can support your baby's development and contribute to better sleep. Try these activities with your 4-month-old:

Tummy Time

Encourage longer periods of tummy time, introducing toys and mirrors for engagement

Benefits:

  • Strengthens core muscles needed for rolling and eventual crawling
  • Promotes physical tiredness for better sleep
  • Helps prevent flat spots on the head

Object Permanence Games

Play peek-a-boo or hide toys under a blanket

Benefits:

  • Develops cognitive skills and memory
  • Helps baby understand that you exist even when out of sight (important for sleep training)
  • Provides mental stimulation for better daytime alertness and nighttime rest

Sleep Training Introduction

Begin implementing consistent sleep training methods, such as gradual withdrawal or timed check-ins

Benefits:

  • Teaches baby to self-soothe and fall asleep independently
  • Helps establish consistent sleep patterns
  • Can lead to longer stretches of nighttime sleep for baby and parents

Common Concerns

The 4-month mark often brings new challenges, particularly related to sleep. Here are some common concerns for 4-month-olds, with a focus on sleep-related issues:

4-Month Sleep Regression

Baby suddenly wakes more frequently, has trouble falling asleep, or takes shorter naps

Advice:

This is due to sleep cycle changes. Maintain consistent routines, consider sleep training methods, and ensure a sleep-conducive environment.

Increased Night Wakings

Baby wakes multiple times at night, often wanting to feed or be soothed

Advice:

Gradually reduce night feedings if appropriate. Implement a consistent bedtime routine and consider sleep training techniques to encourage self-soothing.

Nap Transitions

Baby may be transitioning from 4 naps to 3 naps a day

Advice:

Follow baby's cues and gradually extend wake windows. Ensure the last nap doesn't interfere with bedtime. Aim for age-appropriate wake windows between naps.

Sleep Associations

Baby relies on specific conditions (rocking, feeding, etc.) to fall asleep

Advice:

Work on putting baby down drowsy but awake. Gradually remove sleep associations to promote independent sleep skills.