One day your baby is happily being passed around at a family gathering. The next, they are screaming the moment you hand them to their grandparent. You cannot leave the room without a meltdown. Bedtime, which was finally feeling manageable, has fallen apart. And daycare drop off has become something you dread.
If this sounds familiar, your baby is most likely going through separation anxiety. It is one of the most common and most exhausting phases of the first year, and it catches many parents off guard because it can seem to appear overnight.
The good news is that separation anxiety in babies is a completely normal stage of development. It is not a sign that something is wrong. It is a sign that your baby’s brain is growing, their emotional world is expanding, and the bond between you is strong. Understanding what is happening and why can make this stage feel a lot less overwhelming.
Why Separation Anxiety Happens in the First Year
To understand why your baby suddenly cannot bear to be apart from you, it helps to know what is happening inside their developing brain.
Somewhere between four and seven months of age, babies begin to develop a cognitive skill called object permanence. This is the understanding that people and things continue to exist even when they are out of sight. Before this milestone, when you left the room, your baby did not fully grasp that you had gone somewhere. You were simply not in their field of vision, and that was that.
Once object permanence develops, everything changes. Your baby now knows that when you walk away, you still exist. The problem is they have no concept of time. They cannot understand that you will be back in five minutes, or after lunch, or at the end of the day. As far as their brain is concerned, your departure could be permanent. That uncertainty is what drives the crying, the clinging and the distress.
This is also the age when many babies develop what is known as stranger anxiety. Your baby has learned to distinguish familiar faces from unfamiliar ones. They know who their primary caregivers are, and they prefer to be with those people. Being held by someone they do not recognise, or even a relative they do not see often, can feel threatening. This is why your baby might suddenly cry when handed to an aunt or uncle who was perfectly fine a month ago.
These two developments, object permanence and stranger awareness, work together to create the emotional storm that is separation anxiety. Your baby is not being difficult or manipulative. Their brain has reached a new level of understanding, but their emotional regulation skills have not caught up yet.
What Separation Anxiety Can Look Like Month by Month
Every baby is different, and there is no precise calendar for when separation anxiety will appear, peak or ease. But there are general patterns that many families recognise.
Around 6 months
This is often when the earliest signs show up. Your baby may become unsettled when you leave the room, fuss when placed down after being held, or show a stronger preference for one caregiver over others. At this age, the anxiety tends to be mild and intermittent. You might notice it on some days and not others.
Some babies also begin to show wariness around unfamiliar people at this stage. A baby who was content being held by anyone at four months may now protest when a less familiar adult picks them up. This is stranger anxiety beginning to emerge, and it often goes hand in hand with the early stages of separation anxiety.
Around 8 months
coincides with a burst of cognitive development. Your baby is developing a stronger grasp of object permanence, and they are likely becoming more mobile through crawling, scooting or pulling up. This newfound physical independence is exciting, but it also makes them more aware of the distance between themselves and you.
At eight months, you might notice your baby crying as soon as you leave the room, becoming distressed when handed to another caregiver, or suddenly resisting being put down. Bedtime and nap time may also become harder, as these are moments of separation too.
Around 9 months
Nine months is a peak period for many babies. The combination of increasing cognitive awareness, growing mobility and a deepening emotional attachment to their primary caregiver creates the perfect conditions for intense separation anxiety. Your baby may follow you from room to room, cry when you close the bathroom door, or become inconsolable at daycare drop off.
This is also the age when many families notice significant changes in sleep. A baby who was settling well at bedtime may suddenly fight going down, wake more frequently during the night, or refuse to sleep without a parent nearby. This overlap between separation anxiety and sleep disruption is so common that it is often referred to as the nine month sleep regression, though it is driven more by emotional development than by changes in sleep architecture.
If you’re ending maternity leave around this time and heading back to work, read our post on settling into childcare for more information on how me manage separation anxiety at drop off, as well as our real case study example, further down this page.
Around 10 to 11 months
For some babies, separation anxiety continues to build through the tenth and eleventh months. Others begin to show the first signs of easing. Much of this depends on your baby’s individual temperament, their daily experiences, and how consistently they have been supported through the earlier months of this phase.
At this age, babies are developing stronger memory skills. They are beginning to hold mental images of their caregivers even when apart. This is the foundation for understanding that separation is temporary. You may notice that while drop offs or departures still produce tears, your baby recovers more quickly than they did a month or two ago. The protests may be just as loud, but the duration starts to shorten.
Around 12 months
By their first birthday, many babies are starting to move through the most intense phase of separation anxiety. They have a better grasp of routines, a growing vocabulary for understanding simple reassurances, and more experience with the pattern of you leaving and coming back. However, separation anxiety does not simply switch off at twelve months. For many children, it resurges between 14 and 18 months as they enter toddlerhood and face new developmental challenges.
It is worth noting that these timelines are guides, not rules. Some babies experience very little separation anxiety during this period. Others feel it deeply. A baby’s temperament plays a significant role. Children who are naturally cautious, sensitive or slow to warm up to new situations may experience more intense or prolonged anxiety than babies who are more adaptable by nature. Neither response is a cause for concern. They are simply different ways of moving through the same developmental stage.
How Separation Anxiety Affects Your Baby's Sleep
If your baby’s sleep has taken a sudden turn for the worse, separation anxiety may be the reason. Sleep requires your baby to be apart from you, which is the very thing their brain is telling them to resist. This is why bedtime and nap time often become the most visible battleground during this phase.
Common sleep related signs of separation anxiety include your baby crying or protesting when placed in their cot, needing to be held or rocked to fall asleep when they previously settled independently, waking more frequently overnight and being difficult to resettle, calling out or crying immediately upon waking and realising you are not there, and fighting naps during the day.
The disruption can feel relentless, especially if your baby had been sleeping well before this phase began. It is tempting to change everything in response, but the most effective approach is to stay as consistent as possible with your existing sleep routines while adding small measures of comfort.
Here is what can help:
Keep your bedtime routine predictable. A consistent sequence of events before sleep, such as a bath, a feed, a story and a cuddle, gives your baby a sense of security and signals that sleep is coming. Predictability is calming for anxious babies.
Add a moment of extra connection. If your baby is going through a particularly rough patch, adding an extra few minutes of quiet cuddle time before you put them down can help bridge the gap. This is not about creating a new dependency. It is about providing reassurance during a phase that will pass.
Introduce a comfort object at the right time. For babies aged 12 months and older, a small soft toy or muslin cloth can provide comfort in your absence. Many babies naturally gravitate toward a particular item between 8 and 12 months of age. Safe sleep guidelines in Australia recommend keeping the cot free of loose items for babies under 12 months, so check current recommendations from Red Nose Australia before introducing anything into the sleep space.
Avoid creating new sleep associations you will need to undo later. If your baby was falling asleep independently before separation anxiety hit, try to maintain that where possible. It is fine to offer extra reassurance, but if you begin rocking or feeding to sleep as a response to the regression, you may find it harder to step back once the phase passes.
Give it time. Sleep disruptions caused by separation anxiety are temporary. Most babies return to their previous patterns within a few weeks, provided routines remain consistent and no major new habits are introduced during the disruption.
What You Can Do During the Day
How you respond to separation anxiety during waking hours matters just as much as what you do at bedtime. The daytime experiences your baby has with short separations, social interaction and emotional connection all contribute to how quickly they move through this phase.
Play peekaboo and hiding games. These simple games reinforce the concept of object permanence in a fun, low pressure way. Every time you disappear behind your hands and reappear, your baby’s brain is learning that things that go away also come back. Try hiding a toy under a blanket and letting your baby find it. These are not just games. They are building blocks for understanding that separation is not permanent.
Practise brief separations at home. Leave the room for short periods while your baby is playing and come back with a calm, happy greeting. Start with just a few seconds and gradually build up the time. This teaches your baby, through repeated experience, that you always return.
Build familiarity with other caregivers. If your baby is starting daycare or will be cared for by a grandparent, babysitter or family day care educator, introduce them gradually. Spend time together first so your baby can observe you interacting positively with this person. This signals safety. When the time comes for you to leave, your baby has already formed some connection with the adult who will be caring for them.
Time your separations wisely. Separation anxiety is harder to manage when a baby is hungry, tired or unwell. Where possible, schedule new or challenging separations for times when your baby is well rested and fed. A baby who has just woken from a good nap and had a full feed will cope better with a transition than one who is overtired and running on empty.
Stay calm and confident at departure. Babies are remarkably tuned in to their parents’ emotional state. If you are anxious, teary or hesitant when you leave, your baby will mirror that energy. A warm, confident goodbye, even a brief one, tells your baby that everything is okay. Say goodbye, tell them you will be back, and leave. The lingering is harder on both of you.
Avoid sneaking away. It is tempting to slip out while your baby is distracted, but this can backfire. If your baby turns around and you have vanished without warning, it reinforces the fear that you could disappear at any moment. A quick, honest goodbye is always better than no goodbye at all, even if it triggers tears.
When to Seek Support
For the vast majority of babies, separation anxiety between 6 and 12 months is a normal, healthy and temporary phase of development. It can be intense, but it resolves on its own as your baby’s cognitive and emotional skills mature.
However, there are situations where it is worth seeking guidance from your GP or a child health nurse. Consider reaching out if your baby’s distress is so severe that they are unable to be settled by any caregiver, even after an extended period. If the anxiety is lasting well beyond what is typical for their age and seems to be getting worse rather than better. If your baby is showing signs of significant changes in feeding, weight, or overall development alongside the anxiety. Or if you, as a parent, are struggling with the emotional toll and need support for yourself.
In Australia, your maternal and child health nurse is a great first point of contact. They can assess your baby’s development, offer practical advice tailored to your situation, and refer you to further support if needed.
The Parramatta Child and Family Health Centre is located on the ground floor of Jeffrey House in Marsden Street. You can also use the interactive finder on Health NSW website to find other locations.
It is also okay to simply ask for help with how you are feeling. Separation anxiety is hard on parents, too. The guilt of leaving a crying baby, the exhaustion of disrupted sleep, and the constant worry about whether you are handling things the right way can all take a toll. Talking to someone, whether that is a partner, a friend, a parent group, or a professional, can make a real difference.
How We Manage Separation Anxiety in Babies at Kiddie Garden
Separation anxiety in the first year is one of those parenting experiences that feels like it will last forever while you are in the middle of it. The mornings are harder. The nights are longer. And the sound of your baby crying as you walk away stays with you all day.
At Kiddie Garden, we are with you on this journey. Our educators will cuddle and calm your baby at drop off, ensuring they feel safe and ready to start the day. We will communicate with you throughout the day if you ask us to, and always monitor your child’s progress.
The best way we can describe how we help manage separation anxiety for your little one is to show you an observation report for a 10 month old baby. We’ve removed the child’s name for privacy:
Observation:
During drop-off, [child name removed] was a little unsettled. Educators helped him calm down with a short cuddle, which made him feel safe and ready to start his day. After that, he sat quietly with toys and showed focus while playing. [Child’s name removed] likes having someone nearby while he plays, as it helps him feel supported and confident to explore on his own. He enjoyed reaching for different toys around him and showed curiosity about his surroundings. [Child’s name removed] also enjoyed watching and listening when the educator read a book, showing calmness and interest during storytime.
Analysis:
[Child’s name removed] is showing positive progress in feeling safe and comfortable in the room. The cuddle at drop-off helps him settle and build trust with educators. He is starting to enjoy both quiet and group activities, showing growing confidence and curiosity. Having an educator close by gives him reassurance as he develops independence during play. [Child’s name removed] interest in stories and toys also supports his focus, listening skills, and emotional wellbeing.
What’s Next:
Educators will continue to provide gentle comfort at drop-off to help [child’s name removed] feel secure. He will be encouraged to join more group activities, such as singing, dancing, and interactive play and also, sensory time in the tub with friends to help him build social skills and make connections with other children. Quiet activities, like reading and small group play, will also be provided to support his focus and confidence. Educators will also guide [child’s name removed] to play more independently by offering blocks and activities that match his interests, while still staying nearby to give reassurance and support.
Just one week later, we were pleased to report:
[Child’s name removed] is making great progress in his emotional, social, and physical development. He now settles quickly with gentle support from educators and shows that he feels safe and comfortable in the room. He responds positively to familiar educators, showing trust and security during routines such as mealtimes, nappy changes, and settling into activities. He enjoys gentle interactions and responds with smiles, coos, and laughter, which shows he is building emotional resilience and feeling safe in his environment.
Remember, your baby is learning something important during this phase. They are learning that you are their person. That you are safe and reliable and worth missing. And bit by bit, as they experience you leaving and returning over and over again, they are building the emotional foundation to feel secure even when you are not right beside them. Our consistent, nurturing educators in our baby and infants room helps your child recognise a familiar face, and are here to support you and your child.
We understand that confidence does not arrive all at once. It builds gradually, through hundreds of small moments of trust. Every time you say goodbye and come back, you are teaching your baby that Kiddie Garden is a safe place and that the people in it can be counted on.
So if you are in the thick of it right now, take a breath. You are doing a good job, even on the hard days.