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Siestina

The daily routine of an 18-month-old

At eighteen months the rhythm is finally simple: one nap after lunch, one long night. On paper it is the most comfortable period since birth.

In practice, the difficulties that remain are barely physiological any more. It is no longer about awake windows but about limits: the glass of water, the extra story, the third time out of bed.

The rhythm itself no longer asks for much. One well-placed nap in the early afternoon, a regular bedtime, and the essentials are done.

Their typical day

  1. 07:00Morning wake-up
  2. awake 5 h 15
    12:15Nap · until about 14:00 (1 h 45)
  3. awake 6 h
    20:00Bedtime
Naps
1
Daytime sleep
1 h 45
Awake windows
4 h 15 – 5 h 30
Night
11 h

Calculated from the figures for this age. These are starting points, not instructions: your child’s tiredness signals come before the clock.

The awake windows at this age

First window, on waking
5 h 15
Last window, before bedtime
6 h

The first window of the day is the shortest, the last the longest. That holds at every age, and it is what stops you putting down a child who has not built enough sleep pressure yet.

If your baby wakes earlier or later

The whole day shifts. What matters is the gaps between the moments, not the times themselves.

Wake-up at 06:30

  • Nap11:45 – 13:30
  • Bedtime19:30

Wake-up at 07:30

  • Nap12:45 – 14:30
  • Bedtime20:30

The key point at this age

A nap that overruns pushes everything back

With only one nap, every minute counts more. A nap ending after 3.30 p.m. mechanically shifts bedtime, and a late bedtime spoils the end of the night. If your evenings stretch, look first at the nap’s finish time: that is often the whole explanation. Gently waking a child who goes past three hours is one of the rare cases where waking is the right thing to do.

The page for this age

When the day goes off the rails

The nap runs past 3.30 p.m.

It will push bedtime back, and the end of the night will suffer. This is one of the rare cases where waking a sleeping child is the right thing to do: beyond three hours, or after 3.30 p.m., you gently open the blinds. It makes the difference that same evening.

They refuse the nap on some days

At eighteen months an occasional refusal does not announce the end of the nap — it stays necessary until around three to five years. Offer the slot anyway, in the dark, without forcing: many children who "refuse" fall asleep within twenty minutes. On the days it does not take, move bedtime earlier.

They get out of bed ten times in the evening

That is not the rhythm, it is the limit. You walk them back, without discussing, without looking at them for long, as many times as it takes. It is exhausting for the first three evenings and usually resolves within a week. Every exception resets the counter.

What changes before and after

By ageNapsDaytime sleepBedtime
15 months22 h 4520:00
18 months11 h 4520:00
2 years11 h 3020:00

The questions of this age

How long should the nap be at 18 months?

Between an hour and a half and three hours, in the early afternoon. Beyond that it starts eating into the night.

How long are awake windows at 18 months?

About five hours before the nap and five to six after it, before bedtime. It is the most regular rhythm of the whole of early childhood.

Should the nap be dropped at 18 months?

No. The nap stays necessary until around three to five years. If it prevents settling in the evening, shorten it or move it earlier rather than dropping it.

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