Sleep regression is a common phase in an infant’s sleep cycle, typically occurring between 4 to 14 months of age. During this period, a baby who once slept through the night may start waking frequently, resisting naps, or having a harder time falling asleep.
Experts believe several factors contribute to sleep regression. Rapid developmental milestones—like learning to crawl, stand, or talk—can upset a baby’s internal clock. Physical growth spurts also demand more sleep, and sudden changes in routine or environment can trigger disruptions. Additionally, the transition from using swaddles to a safe crib, or from a feeding schedule to more solid foods, may unsettle an infant’s established patterns.
Recognizing the signs early can help parents adjust strategies. Look for increased fussiness, frequent nighttime wakings, and shorter naps. Consistency remains key: maintain a calm bedtime routine, keep a predictable sleep environment, and respond to your baby’s needs promptly. Gradual adjustments—such as slightly postponing bedtime or using more soothing techniques—can ease the transition.
Most babies recover within a few weeks, resuming a steadier sleep schedule. Remember, patience and routine are the most effective tools, and consulting a pediatrician is advised if sleep issues persist beyond a month or if other signs of distress appear.