

Why do babies have a 4 month sleep regression? Rather than continuing to sleep as a newborn, they now have additional cycles of light sleep and deep sleep. When babies are around 3 - 4 months old, their sleep patterns start to mature.

How long does the 4 month sleep regression last?ĭoes the 4 month sleep regression affect naps?Ĩ tips to overcome the 4 month old sleep regression

Sudden increases in night waking, short naps, fussiness, or fighting sleep? Yup, the 4 month sleep regression is probably to blame.īut not to worry - whether you’re dreading your baby’s first sleep regression or are already in the midst of it, we’re here to help guide you through this important developmental milestone. Just as your baby leaves the newborn stage and their sleep patterns start to become more predictable - bam! - you may see a big shift. Babies often see a big change in their sleep habits around 3 - 4 months old.
