All Ages
All Ages

31–36 Months Baby: Milestones, Sleep & Feeding Guide

The third year closes with children who are now clearly preschoolers. Language is rich and expressive, with 4-5 word sentences and growing vocabulary. Children are increasingly independent in self-care and play cooperatively with peers. Imaginative and creative play is a hallmark of this period. The third birthday marks readiness for preschool for many children.

Highlights

  • Speaks in 4-5 word sentences; vocabulary of 300-1000 words by 36 months
  • Draws simple figures (circles, crosses, early people)
  • Plays cooperatively with other children
  • Toilet trained or nearly so by 36 months
  • Understands and follows 3-step instructions

Developmental Milestones

Here's what to expect at 31–36 months. Remember: every baby develops at their own pace — these are ranges, not strict deadlines.

🏃

Motor Skills

Advanced Gross Motor Skills

Child runs smoothly, hops on one foot, pedals a tricycle, and catches a large ball.

Pre-Writing Skills

Child draws circles, crosses, and simple shapes; begins drawing simple figures.

🧠

Cognitive

Memory and Narrative

Child can recall events from days or weeks ago and tell coherent stories about past experiences.

💬

Language

Rich Expressive Language

Child uses complex sentences with conjunctions ('because', 'and', 'but') and asks many questions.

💛

Social & Emotional

Cooperative Play and Friendship

Child engages in collaborative play, begins forming true friendships, and shows empathy.

🍼

Feeding

Independent Eating

Child eats independently using fork and spoon, can pour from a small pitcher, and handles most textures.

😴

Sleep

Transition Out of Nap

Many children between 3-5 years stop napping; a quiet rest period remains beneficial.

👁️

Sensory

Sensory Discrimination

Child can identify and describe sensory qualities: rough, smooth, loud, quiet, sour, sweet.

🌱

Behavioral

Self-Regulation Growth

Child is developing better emotional self-regulation and can use simple coping strategies.

Sleep at 31–36 Months

Total Sleep10-13 hours
NapsMany children stop napping; quiet rest time replaces nap
Night Sleep10-12 hours
  • Even without a nap, a quiet rest period improves afternoon behavior
  • Maintain the bedtime routine even as nap drops
  • An OK-to-wake clock teaches child to stay in bed until morning
  • Nighttime fears and monsters are common at 3 years - validate and reassure
  • Reading and calm activities before bed improve sleep onset

Feeding at 31–36 Months

What to feed:

  • Full family diet
  • Low-fat milk (16-20 oz/day)
  • Protein at every meal
  • Wide variety of vegetables and fruits
  • Whole grains
  • Healthy fats
  • Variety of textures including raw vegetables

How much: Three meals and 1-2 snacks; portions are 1/4 to 1/3 of adult servings

Schedule: Structured family meal and snack times

Feeding Tips

  • Involve child in all aspects of food from selection to preparation
  • Eating together as a family regularly is associated with better nutrition outcomes
  • Model variety and adventurous eating yourself
  • Keep mealtimes 20-30 minutes and avoid pressure to eat more
  • Fruit and vegetable exposure during this sensitive period shapes lifetime preferences

Foods to Avoid

  • Excessive processed food, sugar, and sodium
  • Juice more than 4-6 oz per day
  • Screen time during mealtimes (reduces appetite awareness and conversation)
  • Bribing or rewarding with food
  • Short-order cooking that reinforces picky eating

Activities & Games

These age-appropriate activities support your baby's development at 31–36 months:

Cooperative Building

Build a large structure (block city, blanket fort) together with equal participation.

Benefits: Cooperative play skills, Spatial and creative thinking, Communication and negotiation

Science Exploration

Use a magnifying glass to examine bugs, plants, and rocks; record findings in a simple journal.

Benefits: Scientific observation skills, Language development, Curiosity and wonder

Feelings Charades

Act out different emotions and have child guess; then switch roles.

Benefits: Emotional recognition, Empathy development, Vocabulary for feelings

Cooking Together

Let child help cook a simple recipe: making pancakes, tossing a salad, or decorating a pizza.

Benefits: Math and science foundations, Independence and self-efficacy, Food connection

Parent Tips

  • The 3-year checkup includes a comprehensive developmental assessment
  • Most children are or will soon be ready for preschool at this age
  • Screen time guidelines recommend no more than 2 hours per day of quality content
  • Reading chapter books or longer picture books supports language and attention
  • This is an ideal age to establish a family media plan and healthy screen habits

Track your baby's development

Month-by-month milestones, sleep tracking, feeding logs, and more. Science-backed, always free.

Track your baby's development →

No credit card · No ads · Always free

On this page

Highlights Milestones Sleep Feeding Activities Parent Tips
← All Ages