Wake Windows for a 6 Month Old

A six-month-old usually manages two to three hours awake between sleeps, across two or three naps, inside a total of 12 to 16 hours of sleep per 24 hours. That is the biggest single jump in awake time in the whole first year: three quarters of an hour added at both ends of the band in one month. It is also the month the day starts losing a nap, the month solids arrive, and the month most parents finally ask out loud whether waking at night is normal. It is, and this page has the numbers for it.

If nothing you did in May works in June, that is the jump. The day genuinely changed size.

Two to three hours, and why it moved so far

At five months the band was an hour and a half to two and a quarter. At six it is two to three. Nothing about your baby doubled overnight; what happened is that the total stayed where it was and the naps started coming out of it. The consensus statement behind every band on this site gives 12 to 16 hours per 24 hours including naps for infants from four to twelve months, and the overview shows the subtraction in full. Fewer naps inside the same total means longer stretches between them, and that is the entire mechanism.

In practice the three-nap day at six months looks roughly like: up, two hours or so, a long first nap; two to two and a half hours, a second nap; then a short third one, and bed. Two hours after waking is a normal first window; three hours before bed is a normal last one. The wake window calculator will add the band to whatever time she actually woke, and it prints two clock times rather than one, because it does not know one.

The third nap goes, and bedtime comes forward

Somewhere around six to nine months most babies move from three naps to two. It is a range with three months in it for a reason: nobody publishes a schedule for this, and a six-month-old on three naps and a six-month-old on two are both entirely ordinary.

What it looks like from the inside is a late-afternoon catnap that stops working — she lies there being sociable for half an hour, or she takes twenty minutes and then will not go down at seven. The mistake worth avoiding is deciding after one bad week. Give it a fortnight of failing more often than it works, and in the meantime run the days differently: on the days the third nap happens, bedtime stays where it is; on the days it does not, bedtime comes forward, sometimes by a lot. An earlier bedtime is the whole tool for this month. It looks like a step backwards and it is not.

The 3 to 2 nap transition page covers what the two-nap day is supposed to look like and how long the middle of it takes, and the nap transition checker will happily tell you to wait. The sleep schedule generator will draw both versions of the day so you can see the difference before you commit to it.

Waking at night at six months is ordinary

This is the page to say it with the evidence rather than with reassurance, because six months is when the question gets asked and when the pressure from everybody else is at its worst.

The American Academy of Pediatrics is unusually blunt about it: at this age a good sleeper is a child who wakes frequently but can get himself back to sleep, not one who sleeps for ten hours without stirring — frequent waking is developmentally appropriate. The thing being described as the goal, in other words, is not an unbroken night. It is a baby who surfaces and goes back down.

And there is a number underneath that. A cohort of more than 1,200 infants was followed at 6, 15, 24 and 36 months, and two distinct patterns came out of it:

Read the second row slowly if you are in it. About a third of that cohort woke their mothers every single night at six months, and the pattern did not resolve into the first group by the following month or the following season — it shortened gradually over two years. Both rows are normal. Neither is a fault, and nothing you did put your baby in one row rather than the other. Nothing on this site attaches an age to sleeping through the night, because nobody it is allowed to cite does.

Solids arrive, and milk stays the main event

At about six months solid foods start to be added, on the AAP's own guidance, and babies go on being fed when they seem hungry rather than to a clock. That is the whole of what is published, and it is worth noticing what is not in it: nothing about sleep.

A feed in the day does not buy you a night. The folk version of this — more food in, longer sleep out — is not supported by anything this site is allowed to stand on, and the first months of solids are mostly a baby learning to move food around her mouth rather than a baby taking on calories. Milk stays the main event well past this month. If the nights get better while you are starting solids, that is the six-month-old learning to resettle, which she is doing anyway.

The cot, now that she can sit up

Sitting is arriving around now — the published window for sitting without support falls a little later, and the 7 and 8 month page carries it — and a baby who can push herself upright changes what a safe cot looks like. Drop the mattress base before she needs it dropped rather than after. Anything she can reach from a sitting position is now inside the cot, whether you put it there or not: cords, monitor cables, the corner of a muslin tucked into the side.

The rules themselves do not move. Always on their back for every sleep, day and night, on a firm flat mattress, in a cot clear of blankets, pillows, bumpers, soft toys, pods and nests — anything that could cover her face and head. The NHS asks for a separate cot in the same room as you for at least the first six months, which makes this the month a lot of families start thinking about moving her out. Six months is the floor rather than a deadline, and there is no reason to hurry it. Nothing weighted goes on or over a sleeping baby, at any age.

What is coming next

Two things, and both of them land on nights. Separation anxiety is the first, and it is the reason a baby who settled easily in the summer suddenly wants to know exactly where you are; the 7 and 8 month page carries the published account of when it starts and how long it tends to run. Crawling is the second, and it does to eight months what rolling did to five.

If this month is already the bad one, the 6 month sleep regression page takes the name apart: no publisher this site is allowed to cite uses the word, or publishes the list of ages, or attaches a number of weeks to it. What is published is on this page — a band that jumped, a nap on its way out, and two normal patterns of night waking.

As ever: if what worries you is not the timing but the baby — feeding, weight gain, a baby who cannot be settled at all, a cry that does not sound like her usual one — that is a conversation with your pediatrician or health visitor. Nothing here is medical advice and no page can see your baby.