Understanding Baby Sleep Regressions
Baby sleep regressions can be a frustrating and exhausting phase for parents, especially when a once well-sleeping baby starts waking up frequently at night or refusing naps. Understanding what baby sleep regressions are and how to manage them can make all the difference in getting through these challenging periods.
If your baby’s sleep disruptions seem excessive and are accompanied by prolonged crying and fussiness, it might not just be a sleep regression—colic could be a contributing factor. Learn more in our guide on understanding baby colic.
What Is a Baby Sleep Regression?
A baby sleep regression is a temporary disruption in a baby’s sleep pattern, often occurring at predictable developmental stages. Babies who previously slept well may suddenly experience frequent night wakings, short naps, or difficulty falling asleep.
For a deeper dive into the science behind infant sleep cycles, check out this resource from the Sleep Foundation.
Common Ages for Baby Sleep Regressions
While every baby is unique, baby sleep regressions typically occur around these ages:

4 months – A major shift in sleep cycles as newborn sleep patterns mature.
6 months – Increased awareness and new skills like rolling over may disrupt sleep.
8-10 months – Separation anxiety and developmental leaps contribute to restless nights.
12 months – Learning to stand, walk, or talk may interfere with sleep.
18 months – Teething and newfound independence can cause nighttime struggles.
2 years – Growing independence, nightmares, and dropping naps can affect sleep.
Signs of a Baby Sleep Regression
- More frequent night wakings
- Difficulty falling asleep at bedtime
- Shorter naps or nap refusal
- Increased fussiness or clinginess
- Changes in appetite
Why Do Baby Sleep Regressions Happen?
Baby sleep regressions occur due to developmental changes, teething, separation anxiety, or changes in daily routine. However, persistent crying, fussiness, and difficulty settling could be signs of colic rather than a baby sleep regression. If your baby seems inconsolable even after being comforted, you may want to read our guide on understanding baby colic.
For additional sleep-related tips, check out our guide on The Benefits of Babywearing and How to Do It Safely, which discusses how babywearing can help soothe fussy babies and improve sleep patterns.
How to Manage Baby Sleep Regressions
While baby sleep regressions are normal, there are ways to manage them and help your baby return to better sleep habits:
1. Stick to a Consistent Sleep Routine
Maintaining a predictable bedtime routine can provide comfort and signal to your baby that it’s time to sleep. This may include:
- A warm bath
- Gentle rocking or cuddling
- A bedtime story or lullaby
For guidance on creating an effective bedtime routine, see this article by the American Academy of Pediatrics.
2. Create a Sleep-Friendly Environment
- Use blackout curtains to block light.
- Keep white noise or soft music playing.
- Maintain a comfortable room temperature.

3. Respond with Comfort, But Avoid New Sleep Habits
During baby sleep regressions, babies may seek extra reassurance. Comfort them without introducing new habits (e.g., rocking to sleep) that could become long-term sleep associations.
4. Encourage Independent Sleep Skills
Teaching your baby to self-soothe can help them transition between sleep cycles. Try putting them down drowsy but awake.
5. Watch for Signs of Overtiredness
Overtired babies often struggle to settle down. Follow age-appropriate wake windows to prevent exhaustion.
6. Be Patient and Give It Time
Most baby sleep regressions last 2-6 weeks. While exhausting, they are temporary and often resolve on their own.
When to Seek Help
If sleep disturbances persist beyond a few weeks or significantly impact your baby’s well-being, consider consulting a pediatrician or sleep consultant. If your baby also exhibits intense crying episodes that last for hours, colic may be a factor—our guide on understanding baby colic provides insights on how to handle it.
For more expert-backed sleep resources, check out this guide from the National Sleep Foundation and Sleep Education from the American Academy of Sleep Medicine.
Final Thoughts

Baby sleep regressions are a natural part of development, but with patience, consistency, and the right strategies, you can navigate these phases successfully. If your baby’s sleep troubles seem extreme and involve excessive crying, be sure to rule out colic as a possible cause. Read our baby colic guide for more insights. Remember, you’re not alone—this, too, shall pass!
Frequently Asked Questions (FAQs)
1. How long do baby sleep regressions last?
- Most sleep regressions last between 2-6 weeks, depending on the baby’s age and development.
2. Should I change my baby’s sleep routine during a regression?
- Stick to your established sleep routine to help your baby adjust back to normal sleep patterns more easily.
3. Can teething cause sleep regressions?
- Yes, teething can contribute to temporary sleep disruptions, but not all sleep regressions are caused by teething.
4. How can I tell if my baby’s sleep issues are due to colic or a regression?
- If your baby is experiencing persistent, inconsolable crying for hours, it may be colic rather than a sleep regression. Read our colic guide for more information.
5. Can sleep training help during a sleep regression?
- Sleep training may help, but it’s best to wait until the regression passes before introducing new sleep habits.