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Expert Guidance on Reflux, Colic, Allergies & Feeding 

Evidence-informed articles from Dr. Jennifer Harris to help you better understand your baby's symptoms, difficulties and next steps. 

Why Will My Baby Only Feed While Sleeping?

Sep 23
8 min read

Updated: Sep 24

By Dr. Jennifer Harris


If your baby refuses the breast or bottle while awake but suddenly feeds much more easily when sleepy or asleep, you may be feeling confused—and probably exhausted.

Parents often describe carefully timing feeds around naps, waiting until their baby is almost asleep before offering a bottle, dream feeding throughout the night, or gently trying to keep their baby asleep long enough to finish a feed.


Sometimes this begins gradually.


Your baby might initially become fussy during feeds. Then they start pulling away after an ounce or two. Eventually, feeding while awake becomes increasingly difficult—but when they're drowsy, they seem able to eat.


This pattern deserves a closer look.


Feeding while sleepy isn't automatically a sign that something is seriously wrong, and it doesn't by itself diagnose a feeding aversion. But when a baby consistently refuses or struggles with feeds while awake and relies on sleepy or sleeping feeds to maintain their intake, I want to understand why.


Parent bottle feeding a sleepy baby who has difficulty feeding while awake

Why does my baby eat when sleeping but refuse when awake?

There isn't one single explanation.


For some babies, feeding may initially have become uncomfortable because of an underlying physical problem.For others, feeding may have become stressful because of repeated attempts to encourage them to eat more than they wanted. And sometimes both things are happening at once.


The important question isn't simply:

"How can we get this baby to drink more?"

It's:

"Why has feeding while awake become difficult?"


That distinction matters.


Could reflux cause my baby to refuse feeds?

It can.

A baby experiencing painful reflux may initially be very hungry and eager to eat.

They begin drinking, but as the feed progresses they experience discomfort.

You might see them:

  • Pull away suddenly

  • Arch their back

  • Cry during or immediately after feeding

  • Take a few sucks and then stop

  • Repeatedly latch and unlatch

  • Turn their head away from the bottle or breast

  • Cough, gag or appear uncomfortable

  • Become increasingly distressed as the feed continues


The confusing part for parents is that the baby may still seem hungry.

They may accept the bottle again moments later—only to pull away again.


Over time, this can create a cycle:

Hunger → feeding → discomfort → stopping → hunger → feeding → discomfort.


Babies learn through association.

If feeding repeatedly predicts pain or discomfort, eventually a baby can begin responding to the expectation of discomfort as well as the discomfort itself.


What is feeding aversion?

Feeding aversion occurs when a baby or child repeatedly avoids or refuses feeding despite being physically capable of eating. It doesn't mean that the baby isn't hungry.

And it certainly doesn't mean that they're being difficult or stubborn. Instead, the baby has learned that something about the feeding experience is unpleasant, uncomfortable or stressful.


There are many possible pathways into feeding aversion. For some babies, pain from reflux or another medical problem may have been the initial trigger. For others, repeated choking, coughing, gagging or difficulty coordinating feeding may make eating frightening or uncomfortable.Some babies begin resisting feeds after illness, hospitalization, tube feeding or other difficult medical experiences. And in other cases, feeding pressure gradually contributes to the problem.


Often, several factors overlap.



What does feeding pressure look like?

When parents hear the term "feeding pressure," they sometimes imagine someone physically forcing a bottle into a baby's mouth. Usually, it is much more subtle than that.

And importantly, parents aren't doing these things because they want to pressure their baby. They're doing them because they're frightened their baby isn't eating enough.


You may have been told your baby needs a particular number of ounces each day.

Perhaps their weight has dropped.

Maybe you've already spent weeks worrying about intake.

So when your baby stops after an ounce, every instinct tells you:

They need to eat more.

You offer again.

And again.

You move the bottle around their lips.

You follow their head with the nipple.

You distract them.

You bounce or walk around the room.

You wait five minutes and try again.

You encourage "just one more ounce."


These are incredibly understandable responses to a stressful situation. But from the baby's perspective, repeatedly being encouraged to continue after signalling that they want to stop can make feeding feel increasingly stressful. This is particularly important when the baby is already stopping because feeding hurts.


Why is feeding easier when my baby is sleepy?

When a baby is drowsy or asleep, their behavioural response to feeding can be different.

A baby who actively turns away from a bottle while awake may accept it when they're very sleepy. Parents quickly discover this. And understandably, sleepy feeding can feel like the solution.


Your baby is finally eating!

You can finally stop counting the ounces they refused earlier.

Sometimes it becomes the only reliable way to maintain intake.


But while sleepy feeding may help a baby consume milk in the short term, it doesn't necessarily resolve the reason awake feeding became difficult. That's the part we need to understand.


Is dream feeding bad?

Not necessarily.


Many babies have occasional dream feeds or take a feed while drowsy without having a feeding problem.The concern is not simply that a baby has ever eaten while sleepy.


What I pay attention to is the pattern.

For example:

Can your baby comfortably eat while awake?

Or:

Does your baby have to be sleepy or asleep in order to eat?

Those are very different situations.


If most successful feeds require your baby to be asleep, feeding is becoming increasingly difficult while awake, or your family's entire schedule is being structured around opportunities to feed your sleeping baby, it is worth investigating why.


Could something other than reflux cause this?

Absolutely.

Feeding refusal is a behaviour—not a diagnosis. We still need to determine what is driving it. Depending on the baby's symptoms and history, possibilities may include:

  • Gastroesophageal reflux disease (GERD)

  • Cow's milk protein allergy or another food-related reaction

  • Feeding or swallowing difficulties

  • Difficulty managing a particular nipple or flow rate

  • Oral-motor difficulties

  • Airway problems

  • Gastrointestinal discomfort

  • Feeding aversion

  • Previous painful or stressful feeding experiences

  • A combination of physical discomfort and learned feeding behaviours


If your baby coughs, chokes, gags, becomes breathless, sounds wet or congested during feeding, or has recurrent respiratory symptoms, those details are particularly important to discuss with their healthcare provider.


Not every feeding problem is reflux, and sometimes further feeding or swallowing assessment is appropriate.


What if my baby's reflux is already being treated?

This is another situation I see frequently.


A baby may have been diagnosed with reflux and started treatment, yet feeding remains extremely difficult. That doesn't automatically mean they need more medication. Instead, it is an opportunity to reassess the whole picture.


Is reflux still causing pain?

Is the medication appropriate?

Does the dose need reviewing as the baby has grown?

Is the medication being administered effectively?

Would another treatment option be more appropriate?

Could another condition be contributing to the discomfort?

And importantly:

Even if the original pain has improved, has the baby's relationship with feeding changed?


Treating the reason feeding initially hurt is incredibly important. But if a baby has spent weeks or months learning that feeding predicts discomfort, removing the physical trigger may not instantly erase that association. Sometimes we need to address both sides of the problem:


Why feeding became uncomfortable—and why feeding still feels unsafe or stressful to the baby now.


The goal isn't simply to give more medication. When medication is clinically appropriate, we want to use it thoughtfully and effectively while continuing to assess whether we're treating the right problem.


Never stop, increase, decrease or change your baby's prescribed medication without discussing it with their healthcare provider.


But my baby is gaining weight. Can they still have a feeding problem?

Yes.

Weight is important, but it doesn't tell us everything about a baby's feeding experience.

Sometimes a baby's growth looks reassuring precisely because their parents are working incredibly hard to maintain it.


You might be:

  • Feeding almost exclusively during naps

  • Dream feeding throughout the night

  • Offering milk repeatedly throughout the day

  • Spending an hour trying to complete one bottle

  • Distracting your baby through feeds

  • Walking, bouncing or rocking while feeding

  • Tracking every millilitre or ounce

  • Planning your entire day around when your baby might eat


Your baby's growth chart doesn't show us how much work went into achieving that intake. A baby can be growing and still have a significant feeding difficulty.

Comfort matters.

Feeding behaviour matters.

And the impact feeding is having on the entire family matters too.


Should I stop feeding my baby while they're asleep?

This isn't something I would recommend deciding based on a blog article.


If sleepy feeding is currently how your baby maintains adequate intake, suddenly removing those feeds without an appropriate plan could result in inadequate nutrition or hydration. Instead, speak with your baby's healthcare provider or feeding professional.

The goal is to understand what's driving the awake refusal and develop an appropriate plan for your individual baby.


When should feeding refusal be evaluated?

Speak with your baby's healthcare provider if you're noticing persistent or worsening feeding difficulties.

In particular, seek appropriate medical assessment if your baby:

  • Is taking substantially less milk than usual

  • Is showing signs of dehydration

  • Is losing weight or struggling to grow

  • Regularly coughs, chokes or gags during feeding

  • Has difficulty breathing or changes colour during feeds

  • Appears to be in significant pain

  • Has persistent or forceful vomiting

  • Refuses most feeds while awake

  • Has become increasingly distressed when presented with the breast or bottle

  • Requires sleep feeding for most or all of their intake


Urgent symptoms such as difficulty breathing, blue or grey colour, significant lethargy, signs of severe dehydration or a baby who appears acutely unwell require prompt medical attention.


Feeding should not feel like a battle

One of the most important things I want parents to understand is that feeding isn't simply about reaching an ounce or millilitre target.


Feeding is also a relationship.

Your baby is learning what hunger feels like.

They're learning what fullness feels like.

They're learning that their signals are understood.

And they're learning whether feeding feels comfortable and safe.


When every bottle or breastfeeding session becomes a battle, the answer isn't necessarily to become better at convincing your baby to eat. Sometimes we need to step back and ask: What is my baby trying to tell us?


When we identify and appropriately address the factors that made feeding difficult—and help a baby rebuild trust around eating—we can begin working toward something much more important than simply finishing bottles:

A baby who feels safe and comfortable eating while awake.


Need Help With Feeding Refusal?

At Crying, Colic & Beyond, we work with babies and children experiencing feeding difficulties including breast and bottle refusal, conflicted feeding, sleep feeding and feeding aversion.


Because feeding difficulties can have both medical and behavioural components, our approach looks at the whole picture—including reflux, gastrointestinal discomfort, allergies or intolerances, previous feeding experiences and your baby's current feeding behaviours.

Learn more about our Feeding Aversion Consultation →


About Dr. Jennifer Harris


Dr Jennifer Prince

Dr. Jennifer Harris is a board-certified pediatrician with extensive experience working with infants and children experiencing reflux, gastrointestinal symptoms, feeding difficulties and feeding aversion. Her approach focuses on understanding both the underlying factors contributing to feeding difficulties and the baby's relationship with feeding.


Through Crying, Colic & Beyond, she works with families via telehealth to help babies move toward safer, more comfortable and less stressful feeding.


This article is intended for general educational purposes only and does not constitute medical advice, diagnosis or treatment. Always discuss concerns about your baby's health, feeding or medication with an appropriately qualified healthcare professional.

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