My 4-month-old suddenly started waking frequently—is it regression?
⚡ Short answer: Changes in sleep patterns around 4 months in babies are very common and usually called the 4-month sleep regression.
Anonymous
4 aylık bebek annesi · Sleep
My 4-month-old was sleeping well but suddenly wakes a lot at night—is this the 4-month regression?
Maiyko AI ADVISOR
The real reply from the in-app AI advisor
Yes, changes in sleep patterns around 4 months in babies are very common and usually called the 4-month sleep regression. It's actually not a setback but your baby's sleep cycles transforming into an adult-like structure—they now experience lighter awakenings between sleep cycles (roughly every 45-60 minutes) and can't fall back asleep as easily as before.
This is temporary, usually lasting 2-6 weeks. To help: make sure daytime sleep is adequate (overtiredness worsens nighttime sleep), keep nighttime interventions calm and dark, and after each waking, wait and try hand-soothing with "shh" sounds for a minute or two before picking up right away. If there's no fever, fussiness, or ear-pulling, and other symptoms are absent, you can relax—this phase will pass.
⚕️ Health note: This answer is for general information only; it is not medical advice. Every baby is different — for decisions about your baby's health, consult your pediatrician.
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