Sleep Regression Calculator
Know what's coming and be prepared. Enter your baby's birth date to see when sleep regressions are likely to occur and get tips to navigate them.
Welcome to Sleep Regression Calculator
Enter your baby's information to see when sleep regressions are likely to occur.
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What is a Sleep Regression?
A sleep regression is a period when a baby who has been sleeping well suddenly starts waking up at night, fighting naps, or having trouble falling asleep. Despite the name "regression," these are actually signs of positive developmental progress.
Sleep regressions typically last 2-6 weeks and are connected to major developmental milestones like learning to roll, crawl, walk, or talk. Your baby's brain is working overtime processing new skills!
Common Sleep Regression Ages
4 Months
The most significant - baby's sleep cycles mature from 2 to 4 stages, similar to adult sleep.
8-10 Months
Driven by crawling, standing, and peak separation anxiety as baby understands object permanence.
12 Months
Often shorter - coincides with learning to walk and increased independence.
18 Months & 2 Years
Toddler independence battles, language explosion, and emerging fears/imagination.
Signs Your Baby is in a Sleep Regression
- Waking more frequently at night (after sleeping through)
- Fighting naps or taking shorter naps than usual
- Taking longer to fall asleep at bedtime
- Increased fussiness and clinginess, especially around sleep
- Changes in appetite or feeding patterns
General Tips for Surviving Sleep Regressions
- Stay consistent - Keep your bedtime routine the same
- Watch for sleepy cues - Don't let baby get overtired
- Optimize sleep environment - Dark room, white noise, comfortable temperature
- Give extra comfort - It's okay to offer more cuddles during this time
- Practice new skills during the day - Let baby work on milestones during wake time
- This too shall pass - Remember, regressions are temporary!
This tool provides general guidance based on common developmental patterns. Every baby is different, and not all babies experience every sleep regression. If you have concerns about your baby's sleep, consult your pediatrician.