
Sleep regression is a common phenomenon among toddlers, and it can occur at various ages, including 17 months. This phase is characterised by disturbances in sleep patterns, with toddlers resisting bedtime, waking up frequently, and experiencing changes in their sleep habits. The 18-month sleep regression, which can occur between 15 to 24 months, is often associated with the transition from two naps to one and coincides with significant cognitive, emotional, and physical development. During this time, toddlers may start testing boundaries, exploring their independence, and experiencing a resurgence of separation anxiety, all of which can impact their sleep. Understanding the causes and strategies to manage sleep regression can help parents navigate this challenging phase and improve their toddler's sleep patterns.
Why is my 17-month-old not sleeping?
| Characteristics | Values |
|---|---|
| Sleep regression | A temporary disruption in a child's sleep |
| Developmental changes | Cognitive and emotional development, testing boundaries, seeking independence |
| Separation anxiety | Second wave of separation anxiety |
| Teething | Sickness or teething pain |
| Overtiredness | Transition from two naps to one nap, adjusting bedtime |
| Bedtime routine | Consistent routine, plenty of daytime activity, minimizing screen time, paying attention to nap schedule |
| Daytime activity | Active play, creating an obstacle course, going outdoors, dance parties, baths |
| Sleep environment | Noise, light, temperature, comfort items |
| Sleep position | Falling asleep independently, weaning night feedings |
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What You'll Learn

Transitioning from two naps to one
The transition from two naps to one is a significant milestone for toddlers and often coincides with the 18-month sleep regression. This regression typically occurs between 15 and 24 months, with many toddlers experiencing it around 17 to 19 months. During this phase, toddlers undergo substantial cognitive development, which can lead to disturbances in their sleep patterns. They start to test boundaries, explore their surroundings more actively, and seek independence. This transition should be gradual to avoid overtiredness, which can exacerbate sleep issues.
- Adjust the nap schedule: On a two-nap schedule, each nap should last around one to two hours. If your toddler is consistently taking shorter naps, they might not be tired enough and may need more awake time before their next nap. If they start waking up earlier in the morning, it could be a sign that they are ready to drop a nap.
- Gradual transition: Toddlers need time to adjust to a new sleep schedule. Gradually shift their nap times and bedtime to ease them into the new routine. This might include moving up bedtime if they seem cranky or tired in the evenings.
- Ensure adequate sleep: The transition to one nap might result in shorter total nap time. Make sure your toddler is still getting enough sleep overall, including at night. If they seem overtired, consult your pediatrician for advice.
- Wind-down routine: Incorporate a calming wind-down routine before the afternoon nap to help your toddler relax and prepare for sleep. A consistent routine can signal to their body and mind that it's time to rest.
- Consistent bedtime routine: Establish a consistent bedtime routine to help your toddler wind down and prepare for sleep. Avoid negotiations or giving in to demands for "one more book" or "one more hug" as this can reinforce stalling tactics and disrupt the bedtime routine.
- Daytime activity and sleep environment: Ensure your toddler gets plenty of daytime activity and interaction. Additionally, pay attention to their sleep environment, choosing appropriate sleepwear and minimising screen time before bed.
- Address separation anxiety: The 18-month sleep regression often coincides with a resurgence of separation anxiety. If your toddler is struggling with separation anxiety, consider lengthening your pre-sleep routine to include extra cuddle time and reassurance.
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Separation anxiety
If your 17-month-old is experiencing separation anxiety, you may notice that they are taking shorter naps or completely refusing them. They may also scream when you try to leave the room. To help your child cope with separation anxiety, you can try nurturing your bond and promoting independence. For example, practice leaving the room and coming back, always greeting your child happily when you return. Games like peek-a-boo and hide-and-seek can also help. You can also provide your child with a transitional object, such as a lovey, to provide comfort and ease feelings of anxiety. Research has shown that a comfort object can provide a sense of security during stressful transitions. However, lovies or transitional objects are not safe for sleep under 12 months.
Additionally, you can make sure that your child gets to see you at least once during nighttime interactions. Some parents choose to "camp out" in their child's room during these sensitive phases, sitting in the room without engaging and repeating a good night phrase such as "you are safe, I love you, it is time to sleep". It is important to remember that this phase will pass and that you are doing the best you can to guide your child through it.
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Testing boundaries
At 17 months, your baby is becoming more independent and is probably going through a lot of developmental changes. This is an important time for them to learn about their limits and test boundaries. While this is a normal part of their development, it can be challenging when it comes to sleep.
Firstly, it's important to remember that sleep regression is common at this age. It's often a sign of your baby's developing brain and body, and it's temporary. During this time, your baby's brain is busy learning new things, and as a result, their sleep can be interrupted. They may be curious about the world around them and want to explore, or they might be dealing with new worries and fears. All of these factors can impact their sleep.
To help your 17-month-old through this phase, it's crucial to establish a consistent bedtime routine. Stick to the same early bedtime every night, and ensure their daytime nap schedule is appropriate for their age. You can also include calming activities in their bedtime routine, such as reading an extra story, to increase their sleep drive.
Additionally, it's important to teach your child how to fall asleep independently. Avoid rocking or feeding them to sleep, as they need to learn to self-soothe. When they wake up at night, resist the urge to rush in immediately. Give them a chance to settle themselves back to sleep. If they continue to cry, you can check on them, but keep the interaction brief and consistent. Repeat a mantra like, "good night, I love you, it's time to sleep," without engaging in further conversation.
Remember, this phase of testing boundaries is normal, and it will pass. By maintaining a consistent bedtime routine and encouraging your child's independence, you can help them navigate this challenging period and establish healthy sleep habits.
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Language development
At 17 months, toddlers are recommended to get 13 to 14 hours of sleep over 24 hours for proper growth and brain development. This is usually made up of 10 to 12 hours of nighttime sleep and 2 to 3 hours during the day. However, it is important to note that every child is unique and it is normal for some toddlers to require more or less sleep.
At this age, toddlers are going through a lot of cognitive, emotional, and physical development, which can impact their sleep. They are learning new words and skills, and their personalities are starting to shine through. They are also becoming more mobile, with many learning to walk and even run. This increased mobility can lead to what is known as "sleep regression," a common sleep pattern disruption that can occur anywhere between 15 to 24 months, with 18 months being the most common. During this time, toddlers may experience fussiness, nighttime awakenings, and more daytime naps.
To improve sleep during this language development phase, it is essential to establish a consistent bedtime routine and sleep schedule. Reading books, listening to soft music, or taking a relaxing bath can help create a soothing environment before bedtime. Exposing your toddler to fresh air and natural light, and at least three hours of active play during the day can also improve their sleep quality at night.
It is worth noting that not all toddlers experience sleep regression at 18 months. Some may even show notable improvements in sleep. However, understanding sleep regressions as potential phases in a child's development can help parents tailor their approach to their child's unique needs.
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Establishing a consistent bedtime routine
Set a soothing environment
Create a calming atmosphere by dimming the lights and keeping noise and distractions to a minimum. Turn off screens and, if possible, ask older siblings to be quiet. White noise in the background can also help to block out any unexpected sounds that might disrupt your toddler's sleep.
Offer a transitional object
A transitional object, such as a small soft blanket or a stuffed toy, can give your toddler an extra sense of security. Your toddler might even want to make saying goodnight to their transitional object part of the routine.
Establish a wind-down routine
Develop a set of calming activities that signal to your toddler that bedtime is approaching. A warm bath, a gentle massage, and quiet play can help your toddler relax and prepare for sleep. Reading books, singing lullabies, and bedtime stories are also wonderful steps to include in your wind-down routine.
Be consistent
Consistency is key. Try to maintain a regular bedtime, ideally between 6:00 PM and 8:30 PM for 17-month-olds, and stick to your bedtime routine as much as possible. This helps your toddler establish healthy sleep habits and gives them a sense of predictability and control.
Avoid negotiations
While it's important to be responsive to your toddler's needs, try to avoid giving in to demands for "one more book" or "one more hug." This can reinforce stalling tactics and undermine the routine you're trying to establish.
Pay attention to daytime activity and nap schedules
Ensure your toddler gets plenty of sunlight, fresh air, outdoor play, and healthy meals during the day. A well-rested toddler who has had enough stimulation during the day will be more likely to sleep well at night. Most 17-month-olds transition to one nap per day, so be mindful of their nap schedule and adjust their bedtime accordingly to avoid overtiredness.
Remember that every toddler is unique, and it's important to find a routine that works best for your family. By establishing a consistent bedtime routine, you'll create a comforting and predictable environment that promotes healthy sleep habits for your toddler.
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Frequently asked questions
There could be several reasons for this. The most common one is the 18-month sleep regression, a developmental phase that typically occurs between 15-24 months, often around 17-19 months. During this period, toddlers experience significant changes in their sleep patterns, leading to disturbances.
Sleep regression is a common phrase used to describe a temporary disruption in a child's sleep. It could manifest as a child waking up at night, rising early, or refusing naps. This is common during times of developmental growth or big transitions, such as starting preschool or the birth of a sibling.
During sleep regression, toddlers often start resisting bedtime and waking up frequently during the night. They may cry and need reassurance. They might also be going through a phase of separation anxiety, making bedtime challenging.
Here are some tips to help your toddler navigate this challenging phase:
- Establish a consistent bedtime routine.
- Ensure plenty of daytime activity.
- Choose the right sleepwear.
- Minimise screen time before bed.
- Pay attention to their nap schedule.
- Avoid negotiations during the bedtime routine.
- Create a comfortable sleeping environment, reducing noise and distractions.
- Ensure your toddler is getting enough active play during their awake time.
- If your toddler still needs a feed right before bed, consider swapping it out for a snack.











































