Sleep Regressions: What They Are, When They Hit, and How to Survive Them
📅 June 3, 2026·⏱ 1 min read·📖 127 words
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You have finally cracked a routine. Your baby is doing decent stretches. And then — overnight — it all falls apart. Welcome to the sleep regression.
What is a sleep regression?
A period when a baby who was sleeping reasonably well suddenly wakes more, fights naps, or takes longer to settle. They are caused by developmental leaps.
When do they happen?
Commonly at 4 months, 8 months, 12 months, 18 months and 2 years. The 4-month regression is permanent — it reflects a genuine change in how babies cycle through sleep.
How to survive it
Lower expectations temporarily — this is a phase
Keep settling cues consistent: dark room, white noise, routine
Do not start sleep training mid-regression
Accept all offers of help
Every regression ends. The average duration is 2-6 weeks. You will get through it.
💬 Parents also asked
Watch for these cues: rubbing eyes, yawning, staring into space, or becoming fussy and harder to settle. Acting on these cues quickly -- before the meltdown -- is the key. An overtired baby produces cortisol, which actually makes it harder for them to fall asleep.
No -- until your baby can roll independently, they should always be placed on their back to sleep. This is the safest position and reduces SIDS risk. Once they can roll both ways themselves, you don't need to reposition them.
Most babies start sleeping longer stretches between 3-6 months as their nervous system matures -- but "sleeping through" often means 5-6 hours, not necessarily 12. It varies hugely between babies, and night wakings are completely normal well into the first year.
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