
Sleep regression is a normal part of a baby's development, and it can occur at various stages, including at 3-4 months, 6 months, 8-10 months, 12 months, and during the toddler years. The 9-month sleep regression is a temporary disruption in a baby's sleep schedule, which can cause difficulty in falling asleep, frequent night wakings, and increased fussiness. This phase is usually short-lived, lasting a few weeks, and is associated with the baby's developmental milestones and new skills, such as crawling, standing, and talking. While it can be challenging for parents, maintaining a consistent bedtime routine and ensuring physical activity during the day can help babies regulate their sleep patterns during this time.
| Characteristics | Values |
|---|---|
| Duration | Usually a few weeks, but may be longer |
| Cause | Developing new skills, such as crawling, standing, and talking |
| Signs | Increased fussiness, more frequent overnight wake-ups, trouble settling down to sleep, clinginess, teething |
| Coping mechanisms | Physical activity during the day, consistent routine, predictable activities before bedtime, dry and well-fed baby |
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What You'll Learn

Sleep regression is a normal part of baby and toddlerhood
Sleep regression is a normal part of babyhood and toddlerhood. It is a period when a baby who was previously sleeping well suddenly experiences difficulty settling down to sleep, wakes up in the middle of the night, and/or refuses to nap. Sleep regression can be caused by several factors, including teething, growth spurts, excitement over new milestones, and changes in routine. It is important to remember that sleep regression is typically short-lived and will likely resolve on its own with time.
The 9-month sleep regression is a common occurrence, often associated with the various developmental milestones that babies achieve at this age. Many 9-month-olds are learning to crawl, pull up to stand, and even cruise around. They are also developing emotionally, experiencing a range of emotions and expressing them through consistent smiles and cries. These new skills and emotions can disrupt their sleep patterns, leading to the 9-month sleep regression.
During this regression, parents may observe their babies becoming fussier at naptime or bedtime, waking up more frequently at night, and having trouble settling down to sleep. Some babies may also experience increased clinginess when their caregivers leave the room, and teething pain may further contribute to sleep disturbances. While this regression can be challenging for both parents and babies, it is important to remember that it is typically short-lived and a normal part of development.
To cope with the 9-month sleep regression, consistency and routine are key. Ensure your baby is well-fed, dry, and comfortable before bedtime to minimise fussiness. A solid bedtime routine with predictable activities such as dinner, bath, a book, and dimmed lights can help signal to your baby that it's time to sleep. It is also important to maintain their daily physical activity and allow them to practice their new skills, such as standing and crawling.
While it is generally best to avoid implementing new habits during a regression, it may be necessary to make some adjustments to help your baby through this challenging period. For example, you can let them fuss a little in the middle of the night, as this can help them learn to soothe themselves back to sleep. Additionally, removing gadgets and toys from their crib can prevent distractions and encourage sleep. Remember that this regression is temporary, and with patience, consistency, and some trial-and-error, you will likely see your baby's sleep patterns improve.
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Signs of sleep regression
Sleep regression is a common phenomenon, and it can occur at various ages, including 3 to 4 months, 6 months, 8 to 10 months, 12 months, 15 months, 18 months, 2 years, and 3 years. The 9-month sleep regression is one that many parents face, and it can be challenging. So, how do you know if your baby is going through this phase? Here are some signs to look out for:
- More frequent night waking: Your baby may start to wake up several times during the night. They may even wake up every hour, which can be exhausting for parents.
- Trouble falling asleep: It might become harder for your baby to drift off, and they may take up to 60 minutes to settle down to sleep.
- Resisting naps: Your little one may suddenly start skipping naps or refusing to take them.
- Increased fussiness: You might notice that your baby becomes fussier and harder to settle, especially at naptime or bedtime.
- Developmental milestones: Nine-month-olds are achieving major physical milestones, such as crawling, pulling up to stand, and even cruising around. They may be excited to practice these new skills, which can disrupt their sleep.
- Separation anxiety: At this age, babies often experience separation anxiety as they begin to understand object permanence. This can cause them to wake up looking for reassurance from you during the night.
- Teething: The pain and discomfort of teething can contribute to sleep disturbances.
- Growth spurts: Growth spurts can impact sleep patterns, and it's important to ensure your baby is getting enough milk and solid foods.
- Change in routine: Illness, travel, or a new childcare provider can also trigger sleep regressions.
- Clinginess: Your baby may become clingier and want more attention, especially when you try to leave the room.
Remember, sleep regressions can look different for every child, and they are usually temporary, lasting a few weeks on average. If sleep disturbances persist beyond six weeks, it may be a good idea to consult your child's doctor to rule out any underlying health conditions.
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Causes of sleep regression
Sleep regression is a period, usually lasting a few weeks, when a baby who was sleeping well suddenly has difficulty settling down to sleep, wakes up in the middle of the night, and/or refuses to nap. Sleep regressions can look different for every baby, but most are associated with a developmental milestone or leap.
The 9-month sleep regression is a short-lived disruption in your baby's sleep schedule that happens when they are about 9 months old. It can come out of nowhere, but it means your baby is developing new skills. These skills can be the cause of a 9-month sleep regression. Signs your baby is going through the 9-month sleep regression could include increased fussiness at naptime or bedtime, more frequent overnight wake-ups, trouble settling down to sleep, new milestones like crawling, standing up, or talking, clinginess when you leave the room, and teething.
There are several causes of sleep regression. One of the most common is that your baby is reaching new milestones. For example, many babies begin crawling when they are around 9 months old, and they may also start standing up or taking their first steps. This can be both exhausting and exciting for your baby, leading to sleep regression. Separation anxiety is also common around this age, and your baby may wake up looking for reassurance from you during the night. Teething can also cause sleep regression, as the pain and discomfort can make it hard for your baby to settle down and sleep through the night.
Other causes of sleep regression include growth spurts, travelling, illness, or a change in routine. For example, if your baby's bedtime is too early, they may not show signs of fatigue at bedtime and may wake up in the middle of the night or very early the next day, refreshed and ready to go. It's important to make sure your baby is dry and well-fed before bedtime, as being hungry or uncomfortable will cause them to fuss.
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How to cope with sleep regression
Sleep regression can be a challenging time for parents and caregivers, but there are several strategies that can help you and your little one cope during this phase.
Firstly, it's important to remember that sleep regression is a normal and temporary phase that many babies go through. It is usually short-lived and typically lasts a few weeks, but this may vary. This period signifies that your baby is developing new skills and milestones, so it's important to be patient and provide a supportive environment.
To help your baby regain healthy sleep habits, here are some specific strategies you can try:
- Maintain a comfortable sleep environment: Ensure your baby's sleep space is cosy and breathable, with a suitable mattress and bedding.
- Stick to a consistent routine: Establish a solid bedtime routine with predictable activities, such as dinner, bath, reading a book, singing a song, and dimming the lights. Consistency is key, so try to avoid implementing new habits, rules, or restrictions during this time.
- Address physical needs: Ensure your baby is dry, well-fed, and comfortable before bedtime. Hunger, discomfort, or a wet diaper can cause fussiness and interrupt sleep.
- Remove distractions: Take gadgets and toys out of the crib or sleeping area to minimise distractions and help your baby focus on sleep.
- Encourage self-soothing: Allow your baby to fuss a little in the middle of the night, as this can help them learn to soothe themselves back to sleep.
- Provide extra attention: If your baby seems stressed or anxious due to life changes or separation anxiety, offer extra attention and reassurance during the day and before bedtime.
- Consider sleep training: If your baby is at least 4 to 6 months old, you can try sleep training methods. Give it at least two weeks to see if it's effective.
- Seek professional advice: If sleep disturbances persist beyond six weeks or you have concerns, contact your child's doctor. They can help rule out any underlying health conditions and provide personalised advice.
Remember, this phase will pass, and your baby will reach new developmental milestones. Be patient, consistent, and don't hesitate to reach out for support if needed.
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Sleep regression and separation anxiety
Sleep regression is a period when a baby who previously slept well suddenly has difficulty falling asleep, wakes up in the middle of the night, and/or refuses to nap. The 9-month sleep regression is a short-lived disruption in a baby's sleep schedule, which can come out of nowhere. It happens when the baby is learning new skills, such as crawling, standing, and talking.
Separation anxiety is a normal part of a baby's development. It can be defined as a baby becoming nervous whenever they lose sight of their caregiver. Separation anxiety can impact sleep and cause trouble settling for sleep, increased night wakings, early morning rises, and skipped or short naps. It can also lead to a baby resisting sleep.
Separation anxiety can be a contributing factor to sleep regression. It often manifests at night because overnight sleep marks a long period of separation from caregivers. During waves of separation anxiety, it is common for children to have trouble settling to sleep and to wake more frequently overnight.
To help your baby through sleep regression and separation anxiety, it is important to be responsive to their needs and provide comfort. You can also try to find outlets to comfort them without having your physical presence throughout the night. For example, you can use objects that represent you and the comfort you give, such as a comfort object or "transitional object".
It is also important to maintain a consistent bedtime routine and sleep schedule, as consistency is comforting to children. Make sure your baby is dry and well-fed before bedtime, and remove gadgets and toys from their crib.
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Frequently asked questions
Yes, the 9-month sleep regression is a short-lived disruption in your baby's sleep schedule.
Signs include increased fussiness, more frequent overnight wake-ups, trouble settling down to sleep, new milestones like crawling, standing up, or talking, clinginess, and teething.
The 9-month sleep regression usually lasts a few weeks, but it may stretch a little longer.
Here are some tips to help your baby during this time:
- Stick to a consistent daily routine, including physical activity.
- Avoid implementing new habits, rules, or restrictions during this time.
- Make sure your baby is dry and well-fed before bedtime.
- Remove gadgets and toys from the crib.
- Maintain a solid bedtime routine with predictable activities.
- Put your baby in their crib drowsy but awake.
Yes, sleep regression is a normal part of babyhood and toddlerhood. It is often associated with developmental milestones or leaps, such as separation anxiety, which is common around 8 to 10 months.











































