If your once-soundly-sleeping baby has started waking up more at night or fighting naps, you’re not alone— and you’re definitely not doing anything wrong. This might be just a phase known as sleep regression.
While exhausting, sleep regressions are a normal part of your baby’s development. Knowing what to expect and how to cope can help you get through this phase with a little more patience— and a lot more confidence.
What is Sleep Regression?
Sleep regression is a period when a baby who was previously sleeping well, starts waking more often, taking shorter naps, or resisting sleep altogether. It can feel like a major setback, especially if you thought that you had your baby’s sleep figured out.
These disruptions are usually temporary and tied to big developmental changes happening in your baby’s brain and body.
When Does Sleep Regression Typically Happen?
Sleep regressions can happen at any time especially when your baby’s routine is disrupted by some illness, travel, or key developmental milestones. However, there are some common ages when sleep regressions are more predictable, often tied to growth spurts, teething and major milestones.
While every baby is different, the most common times of sleep regression are:
- 3 to 4 months – Often the first and toughest sleep regression for many parents. It’s usually triggered by a mix of changes in sleep cycle, teething discomfort, hunger from the growth spurt, and the excitement of learning new things like rolling over.
- 6 months – Although babies are usually capable of sleeping through the night by now, some may start waking just for comfort or cuddles— this might be a good time to consider gentle sleep training.
- 8 to 10 months – Crawling, pulling to stand, and separation anxiety may come into play here. It’s common for babies to wake up during the night needing reassurance or simply to practice their new skills.
- 12 months – Around their first birthday, many babies are standing or even taking their first steps. These exciting developments can temporarily interfere with sleep.
- Toddler years (15 to 36 months) – Sleep regression can return during toddlerhood, often triggered by fears (like the dark), teething, nightmares, or separation anxiety. Common ages include 15 months, 18 months, 2 years, and 3 years.
Causes of Sleep Regression:
So what triggers sleep regression? Several factors can be at play, often happening at the same time.
- Developmental milestones like learning to roll, crawl, sit, or walk
- Teething
- Separation anxiety
- Growth spurts
- Changes in routine like from travel, illness, or starting daycare
Signs of Sleep Regression:
Not every rough night is a sleep regression. But if your baby suddenly starts showing these signs and is otherwise healthy— it might be:
- More frequent night wakings
- Shorter or skipped naps
- Difficulty falling asleep (even if they were good at it before)
- Increased fussiness or clinginess during sleep times
- Waking up earlier than usual in the morning
- Less predictable sleep patterns
These changes often happen out of the blue, and can last anywhere from a few days to a few weeks.
Tips to Manage Sleep Regression in Babies:
You can’t always avoid sleep regressions, but a few strategies can make them easier to handle.
- Watch for early signs: Catching early sleeping cues that your baby shows like yawning, or eye rubbing can prevent overtiredness.
- Keep a consistent bedtime routine: A familiar routine helps your baby know it’s time to sleep.
- Offer comfort: More cuddles and reassurance goes a long way during tricky phases like teething and separation anxiety.
- Make the sleep space calming: A dark, quiet, and cool room with white noise can support better sleep.
- Feed when needed, but don’t start new sleep habits: Comfort feeds are okay during growth spurts— just try not to introduce any routine you don’t want to maintain.
- Stay patient with naps: Stick to regular nap times, even if your baby resists— consistency helps.
- Make sure your baby gets enough sleep: Whether your baby is ill, teething, or experiencing growth spurt, it is important that your baby gets enough sleep throughout the day. A well-rested baby is easier to settle than an overtired one.
- Look after yourself too: Sleep regressions are temporary, but they are tiring. Rest when you can, and know you’re doing your best.
When to Talk to Your Pediatrician:
Most sleep regressions pass on their own, but if your baby’s sleep issues are ongoing, extreme, or paired with other symptoms like a high fever, rash, or refusal to eat, check in with your pediatrician to rule out other causes.
Final Thoughts:
Sleep regressions can be confusing, frustrating, and exhausting— but they’re also a sign that your baby is growing and developing in big ways. With a little patience, consistent routine, and lots of cuddles, you’ll both get through it.
Remember, this too shall pass!
