It’s true that “sleep regressions” aren’t really a thing but that you may notice sleep backslide during big periods of development. And the 18 month mark definitely fits the bill! There may be some changes to sleep around this age and you may notice increased difficulty with getting your toddler down for naps or nights.

The 6 months sleep regression (or sleep PROgression as I prefer to call them!) might mean your little one’s sleep is backsliding. You may feel like you barely made it through the 4-month sleep regression and now this!? Lots of parents report a sleep “regression” around this age, with noticeable differences in how their baby is sleeping

Around four months is when your baby’s sleep cycles change. However, this can happen anytime between months 2-6. First, a basic explanation of sleep architecture. Why does the 4 month regression happen at all?