The Four Month Sleep Regression Explained
Four Month Sleep Regression Explained- reviewed by Pam Jones, RN, 25+ year postpartum nurse and sleep coach, updated 8/16/2025. The 4-Month Sleep Regression Explained in 30 Seconds Newborns only go through 2 stages of sleep, but at 4 months old begin maturing into the 4 stages of sleep that we keep for the rest of […]