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Child Development

When Do Babies Start Dreaming? What Happens in a Baby's Sleeping Brain

Babies spend 50% of sleep in REM (vs 20% for adults). They likely dream from the womb. Why babies smile, twitch, and cry in their sleep.

By TeachToddler Editorial Team · · Child Development

What This Guide Covers

Babies spend 50% of sleep in REM (vs 20% for adults). They likely dream from the womb. Why babies smile, twitch, and cry in their sleep.

  • Discover when do babies dream based on pediatric guidelines.
  • Read our evidence-based guide on do babies dream.
  • Read our evidence-based guide on what do babies dream about.
  • Read our evidence-based guide on baby rem sleep.

About TeachToddler

TeachToddler.com provides evidence-based parenting guides reviewed by pediatric specialists. Our child development content is researched, fact-checked, and updated regularly to give parents the most accurate information available.

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