4 month development Archives

4 Month Old Wake Windows: Ideal Length for Better Baby Sleep

Last updated: March 27, 2026 by Nicole Johnson, B.A., M.B.A., Lead Pediatric Sleep Consultant

4 month old wake windows at the right times can help your baby sleep better. Learn all about the best 4 month old wake windows here!

Last updated: December 10, 2025 by Nicole Johnson, B.A., M.B.A., Lead Pediatric Sleep Consultant

The 4-month sleep regression marks a permanent change to a baby’s sleep patterns. Learn why the 4-month sleep regression happens.