Sleep regression occurs frequently at different ages, including 4 months, 8 months, and 18 months. Although other problems can interfere with your baby's sleep habits, you can differentiate regression from other sleep disorders based on when they occur, how long they last, and whether there are other problems.

By the time your baby is 4 months old, you will likely (hopefully!) Have adapted to a version where babies can sleep at night (with at most one or two wakes). At this point, you may still be very tired with 4 month sleep regression, but you may begin to believe that the sleepless nights of the newborn period are over. 

There is nothing new for parents who value more than a good night's sleep. We'll assume you've tried to create a nap and nap routine that allows everyone in the house to get as much sleep as possible. You can check out this source: Baby Sleep Magic – changing the way your family sleeps.

Unfortunately, deterioration in sleep is often seen in babies around 4 months of age. Sleep regression can be frightening and can hurt everyone's sleep in the house. On the bright side, this regression won't last forever! 

Sleep regression is a time when babies who are sleeping well (or at least deep enough) are not getting enough sleep. Sleep regressions may include shorter naps, too busy napping or going to bed, disturbed sleep, and frequent waking at night.