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Your baby was sleeping longer stretches, and now you're up every two hours again. At six months this is one of the most common "what happened?" phases. The short version:
- Waking at night is still normal at 6 months. The AAP says a 6-month-old waking and settling again after a few minutes is expected (AAP)
- Most babies this age still wake. In one UK survey 78.6% of 6–12-month-olds woke at least once a night (Brown & Harries, 2015)
- More food by day rarely stops the wakes. It cut night feeds in that study, not night waking
- The pattern usually comes from how your baby falls asleep, plus daytime timing and a new skill or two
- Call your pediatrician for breathing trouble, fever, dehydration or poor feeding
Quick reference: waking every 2 hours at 6 months
| Question | Answer |
|---|---|
| Is it normal? | Waking is. The AAP expects a 6-month-old to wake and resettle within minutes (AAP) |
| How common is not sleeping through? | 27.9–57% of 6- and 12-month-olds don't sleep a 6 or 8-hour block (Pennestri et al., 2018) |
| Will more solids fix it? | Unlikely. More daytime food cut night feeds but not night wakings (Brown & Harries, 2015) |
| What to check first | How your baby falls asleep at bedtime, nap timing, illness signs |
| When to call | Breathing trouble, dehydration, persistent fever, pain, poor intake |
Why does my 6-month-old wake every 2 hours?
Everyone wakes between sleep cycles. Adults roll over and don't remember it. Babies surface too, and what happens next depends mostly on how they fell asleep in the first place.
The AAP puts it plainly: a baby who is rocked or held all the way to sleep may struggle to go back to sleep when they wake in the night, because the thing that got them there has gone (AAP, Getting your baby to sleep). So the "every 2 hours" rhythm is often just the rhythm of your baby's sleep cycles, with a request for the same help at each one.
Two more things stack on top at this age:
- New skills. Rolling, sitting, getting up on hands and knees. Night waking rose around the start of crawling in babies followed at home from 5 to 11 months (Scher & Cohen, 2015). A baby practising a new move in the cot at 2 a.m. is doing exactly what the research describes.
- Daytime timing. Short naps or a bedtime that slid late leave a baby overtired, and overtired nights are choppier. See wake windows by age.
And sometimes it's simply a cold, an ear or teeth. If the pattern changed suddenly, rule those out first.
Related: start with the big picture in our baby sleep guide 0–2 years.
Is it normal for a 6-month-old to wake every 2 hours?
It's common, and waking itself is normal. Every two hours, night after night, is harder on you than the word "normal" suggests.
Two studies are worth knowing here. In a Canadian cohort of 388 babies, between 27.9% and 57% of 6- and 12-month-olds did not sleep a 6 or 8-hour stretch, depending on the cut-off. And sleeping through was not linked to the babies' mental or motor development, or to their mothers' mood (Pennestri et al., 2018). A baby still waking at six months is not falling behind.
That doesn't make it easier at 3 a.m. It does mean the goal is sleep your household can sustain, not a milestone your baby is failing.
The finding worth repeating
Many parents are told to add a bedtime bottle or more solids "so they sleep through". A UK study of 715 babies aged 6–12 months looked at exactly that. Babies who got more milk or solid food during the day were less likely to feed at night, but not less likely to wake (Brown & Harries, 2015). Breastfed and formula-fed babies woke equally often.
So a heavier dinner might change what the 2 a.m. wake is for. It rarely makes the wake go away.
Why does it look like clockwork?
Because it partly is. Sleep cycles repeat through the night, lighter stretches come round at similar intervals, and the second half of the night has less sleep pressure behind it. If the same help is needed at each surfacing, the wakes line up like a timer, even when the real issue is how bedtime happened.
This is also why two babies who look identical on paper can need different fixes. One is overtired. The other has simply learned that sleep arrives in your arms.
Start here tonight
If you do only one thing: pick one first response and repeat it. Mixed signals (feed one time, rock the next, wait the third) keep a baby checking which one it will be tonight.
- Tonight: same bedtime window and the same first response, for 3–5 nights.
- Tomorrow: look at daytime sleep. Short naps and a late bedtime show up at night.
- This week: change one thing, not five.
What can I try without changing everything?
- Put your baby down drowsy but awake at bedtime. The AAP suggests it so babies learn to fall asleep in their own bed, which is also what they need to do at 2 a.m. (AAP).
- Give a minute before you go in. The same page says not to rush in: babies need a little time to settle themselves after a wake. Go in if the crying builds, obviously.
- Keep night feeds boring. Lights low, voice quiet, no play, straight back down. That's the NHS advice for nights too (NHS, Helping your baby to sleep).
- Protect bedtime timing. Around six months many babies manage roughly 2–3 hours awake before sleep (a rule of thumb, not a measured figure). See wake windows by age.
- Watch the naps. If they're consistently short, see baby wakes after 30-minute nap.
If your days are drifting toward a new nap pattern, timing mistakes can look like "constant waking". How to switch from 2 naps to 1 covers the later version of that shift.
What usually does NOT help
- A new, longer routine every night. Babies do best with the same cues.
- Assuming every wake is hunger. Some are, many aren't, and the study above suggests extra daytime food won't settle the question.
- Ignoring daytime overtiredness. The night is often decided by the afternoon.
- Comparing with a "12-hour sleeper" online. Up to half of babies this age don't sleep a long block yet.
When should I call the pediatrician?
Call if you notice breathing difficulty, signs of dehydration, persistent fever, repeated vomiting, ear-pain signs, poor feeding, or a sudden dramatic change. If you're worried, calling is the right call.
Related: if nights got worse all at once, read sleep regression: how long it lasts and what actually helps.
Partners and caregivers: one night plan
If more than one adult responds overnight, babies meet a different answer each time. That alone can keep wakes going. You don't need to agree on philosophy, just on the next few nights: what you try first, how long you wait, when you step up.
Frequently asked questions
Is waking every 2 hours always hunger?
No. Some wakes are hunger, and at six months many babies still take a night feed. But in the UK study, babies who ate more by day fed less at night and still woke as often. A short feed and straight back to sleep is different from a feed that turns into a party at 2 a.m.
Will this last forever?
No. Night wakings and night feeds both fell with age between 6 and 12 months in the same study. If you feel stuck for weeks, get support; sleep is a day-and-night problem, not a willpower one.
Should I night wean now?
That's a family and medical decision. Some babies still need calories overnight, others are ready. Your pediatrician can advise based on growth and health.
Could teething cause waking every 2 hours?
Teething can disturb sleep, but it's rarely the only reason for a steady 2-hour pattern that lasts weeks. Rule out illness and look at how bedtime happens too.
What if my baby only wakes a lot after midnight?
The second half of the night has lighter sleep and less sleep pressure, so wakes cluster there. If your baby needs the same help each time, that's where you'll feel it.
How KidyGrow can help
At 3 a.m., after the fourth wake, you can't remember when the last nap ended. And that's usually where the night was decided.
KidyGrow keeps that for you. Log naps and bedtime, and the Sleep insights screen shows the usual wake window for your baby's age, how long they have been awake right now, and when the Tonight window opens. Once there are enough logged bedtimes, that window comes from your baby's own week instead of the age norm. The same screen compares this week's sleep with last week's, so a rough stretch reads as a stretch.
Night wakings themselves aren't counted. The daytime clock is what it holds.
For wider sleep context, see baby sleep guide 0–2 years.
_This content is educational and does not replace professional medical advice. If sleep is significantly affecting your family, talk to your pediatrician._
Sources
- AAP HealthyChildren, Getting your baby to sleep (accessed 2026).
- Brown A, Harries V. Infant sleep and night feeding patterns during later infancy. Breastfeed Med. 2015;10(5):246-52.
- Pennestri MH, et al. Uninterrupted infant sleep, development, and maternal mood. Pediatrics. 2018;142(6):e20174330.
- Scher A, Cohen D. Sleep as a mirror of developmental transitions in infancy: the case of crawling. Monogr Soc Res Child Dev. 2015;80(1):70-88.
- NHS, Helping your baby to sleep (accessed 2026).
