The Four Month Sleep Regression
“Sleep regression,” this is a common term I hear being a sleep consultant, and often it is directed toward every circumstance imaginable. If several nights pass with your little one not sleeping well, parents automatically start saying it’s a “regression.” While many people believe there are several sleep regressions, 8-month, 9-month, 1-year regressions, teething and growth spurt regressions, there is not evidence to support this idea.
Research does support that there is a 4-month regression, and for good reason. Permanent changes are happening in your baby’s brain when it comes to sleep.