Sleep Regression: When Your Child Suddenly Sleeps Worse Again
A sleep regression is not a setback but a developmental sign: the child's brain is growing so fast that sleep temporarily suffers as a result. The phase typically lasts 2–6 weeks.
- Common around months 4, 8–10, 18 and year 2 — these age markers coincide with developmental leaps
- Duration: 2–6 weeks — after that the child usually sleeps as well as before — or better
- Not the parents' fault — regression is triggered biologically, not by parenting
- A consistent ritual helps through the phase — stability is the best counter-strategy
What exactly is a sleep regression — and why does it happen?
The best-known is the 4-month regression: the sleep pattern changes permanently from an infant pattern to an adult one — with more transitions between sleep phases. The child who was previously sleeping through the night suddenly wakes every 2 hours. This is not a phase that "passes" — it is a lasting shift that the child simply needs to learn to navigate.
How do I respond correctly without creating new bad habits?
What you should avoid: introducing new sleep aids that you do not want to sustain long-term (child in the parents' bed, carrying them until they fall asleep). What helps: more patience, shorter wake windows during the day, and not picking the child up immediately when they wake at night — wait 2–3 minutes to see if they self-settle.
Frequently asked questions.
Is a sleep regression a sign that I am doing something wrong?
No. Sleep regressions are triggered biologically and happen regardless of parenting style. They are actually a sign of healthy development.
How long does a regression last?
Typically 2–6 weeks. If sleep has not improved after 6 weeks, it is worth looking at room conditions, the sleep routine, and possibly having a conversation with the paediatrician.
Do bedtime stories help during a regression?
Yes — especially then. The familiar ritual gives the child stability during a confusing phase. Favourite stories that are already well-loved are particularly valuable at this time.
