{"id":"a03dada48dbbec8eccb4cdb333406363","slug":"what-is-the-4-month-sleep-regression","question":"what is the 4 month sleep regression?","answer":"At 4 months, there isn't a formally documented \"sleep regression\" the way you might hear about the 8 or 12-month ones. What *is* happening developmentally around this age is that your baby's sleep is starting to organize — they're beginning to consolidate nighttime sleep and move away from the newborn pattern of sleeping in short 2–4 hour cycles whenever they're tired.\n\nThis shift can feel rough because it sometimes looks like your baby is sleeping *worse* when they're actually sleeping differently. You might notice they're more aware of their surroundings, more resistant to being put down, or waking when they used to sleep through. That's normal development, not regression.\n\nAt 4 months, your baby should be getting 12–16 hours of total sleep across 24 hours (including naps), with 3–5 naps typical and waking 1–3 times overnight being completely normal. If you're noticing a sudden change in your baby's sleep pattern around this age, it's worth mentioning to your pediatrician — sometimes it points to something simple like a growth spurt or developmental leap, or occasionally something like reflux that's become more noticeable.\n\nTrust what you're seeing in your baby's behavior: if they seem well-rested and reasonably content, they're likely sleeping enough.","sources":"[{\"title\":\"Longitudinal Study of Infant Sleep Development: Early Predictors of Sleep Regulation Across the First Year.\",\"journal\":\"Nature and science of sleep\",\"year\":\"2020\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/33204198/\",\"score\":0.74},{\"title\":\"Racial/ethnic disparities in infant sleep in the COVID-19 Mother Baby Outcomes (COMBO) study.\",\"journal\":\"Sleep health\",\"year\":\"2022\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/36038499/\",\"score\":0.74},{\"title\":\"Comparison Between Actigraphy Records and Parental Reports of Child's Sleep.\",\"journal\":\"Frontiers in pediatrics\",\"year\":\"2020\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/33072676/\",\"score\":0.74},{\"title\":\"Sleep Duration Is Associated with Household Food Insecurity and Sugar-Sweetened Beverage Intake Among Women, Infants and Children Participating Children Ages 0-5.\",\"journal\":\"American journal of health promotion : AJHP\",\"year\":\"2024\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/38155440/\",\"score\":0.74},{\"title\":\"Infant feeding practices and sleep development in pre-schoolers from the EDEN mother-child cohort.\",\"journal\":\"Journal of sleep research\",\"year\":\"2019\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/30989747/\",\"score\":0.73}]","view_count":0,"created_at":"2026-06-28T19:44:41.047Z"}