Sleep Regression Calculator
Sleep Regression Predictor
Predict and manage sleep regressions based on baby's age
Formula
Common regression ages: 4 months (most significant), 6 months, 8-10 months, 12 months, 18 months, 24 months. Duration: 1-6 weeks typically.
Frequently Asked Questions
What is a sleep regression?
A sleep regression is a temporary period when a baby who was sleeping well suddenly starts waking more at night, fighting naps, or having difficulty falling asleep. They are tied to developmental milestones and brain growth.
Is the 4-month sleep regression permanent?
The 4-month regression is unique because it involves a permanent change in sleep architecture - baby's sleep cycles mature from newborn-style to adult-style with distinct sleep stages. The disruption is temporary (2-6 weeks), but the new sleep pattern is permanent. This is why establishing good sleep habits around this time is important.
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