Four Month Sleep Regression
The "four month sleep regression" is a name given to the sleep cycle transition that happens to ALL babies between 3.5 and 5 months. This transition is a permanent change to more adult-like sleep cycles. Even though all babies have this change in sleep cycles, not all babies will struggle through it.
To learn more about this transition, check out our blog on Four-Month Sleep Regression. For more guidance to get you through this challenging transition and all of the tricky new developments of the 3-4 month stage, check out our Navigating Months 3 & 4 eBook.