Back

June 11, 2025

|

5 min read

18 Month Sleep Regression

For parents, the 18 month sleep regression can be a challenging period that interrupts the usual sleep routines of both toddlers and families. This phase, often occurring between 14 and 19 months, is marked by increased night wakings, naptime resistance, and other disruptions that can leave everyone feeling exhausted. However, understanding the root causes and strategies for handling this sleep regression can make it much more manageable. This article explores the signs, causes, and best approaches to cope with the sleep regression, helping you support your toddler's healthy sleep habits with insights from Snuggle Cubs.

What is the 18 Month Sleep Regression?

The 18 month sleep regression is a temporary yet impactful stage of disrupted sleep that typically arises due to developmental changes. Toddlers who were previously sleeping well may suddenly start waking up at night, struggling to nap, or fighting bedtime. The regression is not a one-size-fits-all experience; some toddlers experience only slight disruptions, while others have more intense changes in their sleep patterns. For most children, this period lasts between two to six weeks, although it may vary.

Recognizing the Signs of the 18 Month Sleep Regression

Parents may notice several 18 month sleep regression signs during this phase:

  • Night Wakings: Previously consistent sleepers may wake up multiple times at night, often seeking comfort or reassurance.
  • Resistance to Naptime: Naps may become challenging, with toddlers resisting sleep even when visibly tired.
  • Early Morning Awakenings: Some toddlers begin waking up earlier than usual, which can throw off the entire 18 month sleep schedule.
  • Shortened Naps: Toddlers may sleep for shorter periods during the day, which can lead to overtiredness.
Signs of the 18-Month Sleep Regression

>>> Read more on : How Sleep Affects Children’s Development and Growth

Key Causes of the 18 Month Sleep Regression

Several factors contribute to the 18 month sleep regression, making it a complex phase to navigate. The primary causes include:

Developmental Milestones and Independence

Around 18 months, toddlers undergo rapid developmental changes. This period is marked by an increased sense of independence, as they learn new skills like walking, climbing, and speaking. With these newfound abilities, they may be more inclined to explore, sometimes resisting sleep in favor of their growing curiosity. This drive for independence is healthy but can interfere with their ability to settle down at bedtime.

Separation Anxiety

18-month sleep regression separation anxiety often go hand in hand, as toddlers become more aware of their attachment to caregivers. This can make them uneasy about sleeping alone, leading to more night wakings and resistance to sleep.

Teething Pain

For many toddlers, the 18-month mark coincides with the arrival of their molars, which can cause significant discomfort. Teething pain often peaks in the evening or early morning, potentially disrupting sleep as they wake up needing comfort. Parents might notice increased 18 month sleep regression cry it out behavior at night as their child copes with this discomfort

Changes in Napping Patterns

Many toddlers around this age begin transitioning from two naps to one, which can temporarily affect their sleep rhythm. If naps are too short or skipped, overtiredness can set in, making it even harder for toddlers to sleep soundly through the night. This transition period is a natural part of growing up but can be challenging to manage.

Causes of the 18-Month Sleep Regression

How to handle 18 month sleep regression?

Spend Time Outdoors:
Exposure to natural daylight helps regulate your child’s melatonin production, which supports better sleep at night. Fresh air and sunlight can go a long way in helping your little one wind down when bedtime comes.

Keep Them Moving:
Physical activity throughout the day helps them burn off steam and makes bedtime smoother. Think about outdoor play, splashing in water, bouncing on a toddler trampoline, creative play that keeps them active and engaged.

Promote Independence:
Giving your child a bit of control can make bedtime less of a struggle. Offer simple, limited choices which pajamas to wear or which bedtime story to read. Stick to two options to avoid overwhelming them.

Follow a Consistent Schedule:
At this stage, children are developing stamina and may need more stimulation before they’re ready to sleep. A predictable schedule helps ensure they’re tired but not overtired come bedtime. A steady routine supports better overnight sleep and fewer wakeups.

Stick to the Routine:
Even if your child starts trying to delay baby bedtime rountine with new tricks, stay consistent. The routine is what grounds them. Avoid skipping steps, and remember: children feel safest when they know what to expect.

Be Consistent and Compassionate:
Clear boundaries paired with empathy go a long way. You can acknowledge their feelings while still enforcing bedtime: “I know you’d like to keep playing, but it’s time to go to sleep now.” This phase can be tough, but holding steady with routines and expectations will help everyone get through it.

Tips for Managing the 18-Month Sleep Regression

FAQs about 18 month sleep regression

How long does the 18 month sleep regression last?

Typically, the sleep regression 18 months lasts between two to six weeks, though this can vary from child to child.

Should I change my toddler’s sleep routine during this regression?

Stick to the routine as much as possible. Consistency is crucial during sleep regressions, though you may need to make small adjustments, like an earlier bedtime, if they seem overtired.

Is it okay to let my child cry it out?

This is a personal decision. Some parents find that a brief period of crying helps their child learn self-soothing, while others prefer to comfort their child immediately. The key is to remain consistent with whichever approach you choose.

What to do for 18 month sleep regression?

If your child’s sleep issues persist beyond a few weeks or significantly impact their well-being, consider consulting a pediatrician or sleep specialist.

>>> You might be interested in: Signs Your Baby is Too Hot While Sleeping?

The 18 month sleep regression is a temporary challenge, but with consistency, reassurance, and a structured routine, you and your toddler can navigate it together. Remember, this phase is part of their natural development and growth, and with the right support, they will soon return to more restful sleep.

    Back
     

    Share:

     

    Wear it, share it. Tag @Snugglecubs and share your life

    Our
    Amazing
    review

    746 reviews

    0-3 month Onesies

    Great product! Removed the spots (insect poo?) 100% at first attempt from cashmere pullover, has a pleasant faint smell, no overpowering eucalyptus smell.
Strongly recommended

    Gisela Doebbeler

    0-3 month Onesies

    Great product! Removed the spots (insect poo?) 100% at first attempt from cashmere pullover, has a pleasant faint smell, no overpowering eucalyptus smell.
Strongly recommended

    Gisela Doebbeler

    0-3 month Onesies

    Great product! Removed the spots (insect poo?) 100% at first attempt from cashmere pullover, has a pleasant faint smell, no overpowering eucalyptus smell.
Strongly recommended

    Gisela Doebbeler

    0-3 month Onesies

    Great product! Removed the spots (insect poo?) 100% at first attempt from cashmere pullover, has a pleasant faint smell, no overpowering eucalyptus smell.
Strongly recommended

    Gisela Doebbeler

    1 4