What Time Should a Baby Go to Bed?

The one published bedtime

Most health bodies decline to name a time. Ireland's HSE does not. In its guidance for children aged six months to two years it says to avoid naps after 3.30pm "so your baby is tired enough for bedtime between 7pm and 9pm". That sentence appears twice on the page, at the nine-month and the two-year marks, so it is a deliberate figure rather than an aside.

For older children the HSE narrows it: from age two, "any time between 7pm and 8pm is a good time to start the bedtime routine", and it adds a useful test — a child should fall asleep within about 30 minutes of going to bed. If yours routinely takes much longer, the bedtime may simply be too early for them.

Nothing equivalent is published by the NHS, the Lullaby Trust, the American Academy of Pediatrics or Red Nose Australia. If you have seen a chart giving a precise bedtime for a four-month-old, it did not come from a health service.

Under three months there is no bedtime

The HSE is blunt about this: newborn babies are too young to follow strict routines, they do not know the difference between day and night, and their sleep is more likely to be affected by hunger than by the hour. It suggests starting to introduce changes at bedtime at about three months, once a baby can begin to tell day from night. The NHS takes the same view, and its bedtime advice is written for babies who have already reached that stage.

So for a newborn, the honest answer to "what time should bedtime be" is that there is not one yet. What helps instead is daylight and normal household noise in the day, and quiet, dim and boring at night, so the difference between the two starts to register.

How to move a bedtime that has drifted

This is the practical question behind most searches, and the NHS publishes a method. Decide the time you want. Start a winding-down routine around 30 minutes before the time your child currently falls asleep. Then bring that forward by 5 to 10 minutes each week, or by 15 minutes a week if they are in the habit of going to bed very late, until you reach the bedtime you want.

The HSE gives the mirror image for a bedtime that is too early — a child who lies awake for an hour. Push bedtime later for a while so they fall asleep within 30 minutes, then move it 15 minutes earlier every few nights until you reach the time you want, keeping the morning wake-up time the same throughout. The fixed morning wake time is the part people skip, and it is the part that makes the shift stick.

Why 6pm bedtimes circulate

Very early bedtimes are popular online because an overtired baby is harder to settle, so bringing bedtime forward can look like it solves everything for a few nights. No health body publishes a 6pm bedtime for babies, and the trade is real: an earlier bedtime tends to pull the morning wake-up earlier too. If your baby is waking at five, moving bedtime earlier again is not usually the lever.

What matters more than the hour

Every body that publishes on this says the same thing about consistency. The HSE says a bedtime routine should take about 30 to 45 minutes, run the same way at about the same time each night, and that everyone caring for your child should follow the same steps. It suggests bath or a change into sleeping clothes, a feed, then about half an hour before bed, a dim light, and putting your baby into the cot drowsy but awake.

The AAP's bedtime guidance adds the same structural point for older babies and toddlers: a predictable sequence, screens off well before bed, and a limit on how long the routine runs so it does not stretch into an hour of negotiation.

Naps set the bedtime as much as the clock does

The HSE's nap guidance is the piece that makes bedtimes work. Babies nap for three to four hours a day across the day, spaced with roughly one to two hours awake up to three months and two to two and a half hours from three to six months. Babies over nine months should not sleep after 3.30pm. If bedtime keeps failing, the last nap of the day is usually a better place to look than the bedtime itself.

Whatever time you choose, the sleep rules do not change

Back, own clear sleep space, firm flat mattress, in your room for at least the first six months, for every sleep, day and night. A bedtime is a scheduling decision. Where and how your baby sleeps is not.

Bedtime for a baby who is not yet on a routine

Between about three and six months, Ireland's HSE describes a baby who is beginning to settle into a sleep and wake pattern and can start a routine, but who still needs 12 to 14 hours of sleep across the day and night, usually with three to four hours of that in naps. At that stage a bedtime is less a fixed hour than the point at which the last nap ends and the wind-down starts. The HSE's own routine — change into night clothes, feed, wait about half an hour, then into the cot drowsy but awake — is a sequence rather than a clock, and following the sequence at roughly the same point each evening is what produces a bedtime rather than the other way round.

When to ask

Speak to your health visitor, public health nurse or GP if bedtime regularly takes more than an hour, if your baby is distressed rather than simply awake, if they are waking within minutes every night, or if you are worried that they are getting far less sleep in total than the published ranges for their age. Ask sooner if the change was sudden.