Eat. Wean. Sleep. Repeat.

Most baby sleep advice treats feeding and sleep as two separate departments. You go to your lactation consultant about feeding. You go to your baby sleep consultant about sleep. And the two never really speak to each other. I think that’s the problem.

After twenty years as a NICU nurse and working as both an IBCLC and an infant sleep consultant, I can tell you with absolute confidence that feeding and sleep are the same conversation. What your baby eats, how they eat, when they eat, and eventually how you change that — all of it shapes you and your baby’s sleep.

Before we even get to sleep, let’s talk about your baby’s gut health.

Your baby didn’t arrive knowing nothing about their own digestion. In the womb, they spent months swallowing amniotic fluid — up to 750mls a day by the third trimester (which amazes me every time I say it!). Their swallowing skills and gut were already practising. Enzymes were developing and movements were happening. This is a very deliberate stage of fetal development so that your baby knows exactly what to do when it’s born.

And then birth happens, and everything changes. The gut microbiome — the community of bacteria that will influence your baby’s digestion, immunity, and even mood for years to come — colonises rapidly through the birth canal, skin contact, and breastmilk. ColostrumGlossaryColostrum is the first milk the breasts produce. According to the NHS, it is "thick and usually a golden yellow colour" and serves as a highly concentrated food, meaning a baby requires only a small amount — approximately a teaspoonful —…Read the full definition →, that thick yellow milk that arrives in tiny quantities in the first days, is not an inadequate supply, despite what people may tell you. A newborn’s stomach is the size of a marble, so that colostrum is exactly the right amount, and it is full of immune factors, growth hormones, and gut-sealing properties that formula just can’t replicate, although I’ve seen plenty of marketing claims to the contrary over the years.

This is important because a lot of the chaos of those first weeks — the feeding every 45 minutes, the wind, the unsettled evenings — is a normal, healthy, immature gut doing exactly what it’s supposed to do. I got a text from a new mum this morning asking me how to fix her baby’s gas (which is what prompted me to write this). My answer: time, baby massage, and good burping technique. It doesn’t need ‘fixed’ for most babies. It’s normal, it does pass, and it isn’t a milk supply problem.

The 4 month sleep regression: the only one worth calling a regression.

The phrase “sleep regressionGlossaryA sleep regression is a temporary period during which a baby or toddler who has previously established a sleep pattern begins to wake more frequently, take shorter naps, or resist settling. The term is widely used in parenting contexts t…Read the full definition →” gets used for so many things that it’s almost lost its meaning. The 8 month one, the 12 month one, the 18 month one. I’ll come back to those later. But the 4 month regression is different, and it’s actually happening and it is permanent. At around 3 to 4 months, your baby’s brain architecture changes. Sleep, which previously looked really simple (cycling between light sleep and deep slee) permanently develops into adult-style sleep. That means NREM stages 1, 2, and 3, plus REM. Sleep cycles that previously lasted around 50 to 60 minutes now shorten to around 45 minutes, or as low as 27 minutes for some babies. And at the end of each cycle, your baby now wakes up much more.

This is why a baby who was sleeping in reasonable stretches suddenly seems to be waking up constantly from 4 months old. They’re not going backwards, they’re actually moving forwards into a more sophisticated sleep system that they don’t yet know how to deal with. The goal from this point isn’t to fix it, it’s to help them learn to settle themselves between their sleep cycles, rather than needing the same conditions they fell asleep in.

One thing I see a lot is that parents are told this regression would pass in two to six weeks. Sometimes that’s true, but for many babies, sleep doesn’t return to how it was without some gentle intervention, because the architecture has changed for good. That’s not anyone’s fault, it’s just their biology and development.

Starting solids will NOT fix sleep, despite what people say.

It’s the most persistent myth in baby sleep, and it causes real problems and expectations for mothers that just aren’t true or realistic. Night wakingGlossaryNight waking refers to the occurrence of a baby or young child waking during the night. The NHS states that "newborn babies invariably wake up repeatedly in the night for the first few months," and the Lullaby Trust confirms that frequen…Read the full definition → is not a sign that your baby needs solid food. Introducing solids early will not help them sleep longer. And starting solids before your baby is developmentally ready can cause real issues — to their gut, their airway, and their relationship with food. I’ve seen it too many times to not mention it.

The three readiness signs: the ability to sit upright with minimal support, loss of the tongue thrust reflex (where babies automatically push objects out of their mouth), and clear interest in food. You need all three, not just your baby getting excited at you eating lunch. A rough guide is around six months and WHO guidance on starting solids is clear: not before six months, not based on age alone, and not to improve sleep.

When you do start, begin with vegetables. The evidence is reasonably clear that palate diversity established early helps with wider food acceptance later. On allergens: the guidance has completely changed in the last decade. Early introduction — from around six months — is thought to reduce the risk of allergy. The LEAP trial demonstrated that early peanut introduction in high-risk infants reduced peanut allergy by up to 80%. Introduce allergens one at a time, earlier in the day, at home, leaving two to three days before the next one. And don’t just give it once then stop because it needs regular exposure.

One more thing worth knowing: gagging and choking are not the same. Gagging is loud, the face goes red, the baby coughs — it’s a protective reflex and over-reacting is what causes the tears. Choking is silent. If your baby cannot cough, cry, or breathe, call emergency services immediately. I highly advise a first aid awareness course if you’re starting solids and feel uncertain.

The 8, 12, 18 month “regressions.”

Let me be super clear about my beliefs here: there is no sleep regression at 8, 12, or 18 months in the same sense as the 4 month one. There is no architectural change in the brain. Sleep, if it gets disrupted, will go back to normal with consistency, patience, time, and sometimes a little outside help.

What is happening at these stages is important but different. Object permanence develops around 8 months which means that your baby now understands that you exist when you’re out of sight, which makes separation distressing in a way it wasn’t before. Teething is painful and illness is also common. Developmental leaps are real, and every new skill almost always disrupts sleep. These are disruptors, not regressions. The way you handle a developmental leap is different to how you handle a permanent change in sleep architecture (that 4 month regression).

Weaning the bottle: why dentists and speech and language therapists both agree on this one.

By 12 months, both dentists and speech and language therapists recommend moving away from bottles, and there are two real, evidence-based reasons for this. The dental concern: the bottle teat sits at the front of the mouth; milk pools behind the upper front teeth; overnight feeds create prolonged acid exposure on enamel. Baby bottle caries is common, painful, affects speech development, and is almost entirely preventable. Another concern (and this goes for snacking toddlers and adults too!) is that a baby/child/adult who is snacking constantly never allows their oral PH to return to neutral — it stays in that acidic, tooth-dissolving state almost permanently, which is when enamel erosion and decay happen. The speech and language concern is that prolonged bottle use can change the shape of the palate and create oral motor patterns that can affect later speech and eating. The NHS guidance is to discontinue the bottle by 12 months. Not milk, just the bottle. I tend to find that this usually helps a lot of night waking too, if done correctly.

Breastfeeding works very differently. The breast is drawn deep into the mouth — the nipple sits at the junction of the hard and soft palate. Milk is delivered further back, away from the teeth. Active suction is required and milk doesn’t flow passively the way it does from a bottle. This is why overnight breastfeeding carries a significantly lower dental caries risk. However, if a baby is breastfeeding very frequently overnight, the pH issue comes to the fore again.

Co-sleeping and breastfeeding: my thoughts.

Breastfeeding and co-sleepingGlossaryThe Lullaby Trust defines co-sleeping as "when parents or carers sleep with a baby on a bed, sofa or chair." Within this, bed-sharing refers specifically to a baby sharing a bed with an adult for most of the night, while room-sharing — w…Read the full definition →/bedsharing often coexist naturally and for many families work together beautifully for months or years. You don’t have to fully wean from breastfeeding to sleep better and you also don’t have to commit to never co-sleeping again if you’re trying to night wean. What I will say is that the combination of co-sleeping plus breastfeeding plus frequent night waking can reinforce each other in ways that become very hard to change. If it’s working, brilliant. If it’s stopped working, knowing this is contributing is the first step — and there are middle-of-the-road approaches that don’t require you to do everything at once. At my core, i am a nurse, and an IBCLC. Sleep consulting comes after that, and I would never ever advise a family to stop breastfeeding if that is their wish. We just look at ways to make it more manageable. A baby sleep consultant who immediately advises Mums to stop breastfeeding as a regular tactic is a huge red flag, and you should avoid and find someone who aligns with your values.

What this all means in practice.

Feeding and sleep don’t exist in separate boxes, the way your baby’s gut establishes in the first weeks influences how settled they are. The 4 month regression is directly connected to feeding associations — if your baby has learned to fall asleep at the breast or bottle, that cycle intensifies after the regression has ended, which makes it feel like the regression never ends. Introducing solids changes the feeding rhythm and the gut requirements, which changes their sleep. Weaning night feeds is important for their sleep and their teeth, as well as their daytime eating. A baby has to have their hunger drive stimulated to want to eat during the day, and a constantly feeding older baby (above 1 year) won’t be having this drive stimulated. Breastfeeding at night is biologically different from bottle feeding at night, but the outcome depends on frequency and individual circumstances.

Your baby has all of these things working for and against their sleep, so if you want support that looks at all of it together, that’s exactly what I do. Find me at lullabies.ae or on Instagram @lullabiesdxb.