The move from two naps to one

This is the transition that threw me the most, because it is not like anything else. There is no single day when a child moves from two naps to one. There are six weeks during which you never know, in the morning, which kind of day you are dealing with.

One day they sleep twice without a problem. The next they refuse the morning nap, hold out until 1 p.m. and collapse. The day after that they sleep twice again.

And meanwhile, nights get worse.

The real signal

There is only one, and it takes patience: they refuse one of the two naps consistently for at least two weeks.

Two weeks. Not three days, not one bad week.

There is an equally valid variant: the morning nap slides so late that it pushes the afternoon one back, which pushes bedtime back, which ends at 9.30 p.m. When the two-nap rhythm no longer fits into the day, it is over.

The false signals, which cost you

Three days of refusal. It happens all the time, at every age, and means nothing.

Teething or a cold. A child brewing something sleeps badly. This is not the moment to change their rhythm.

Coming home from holiday. A week of shifted rhythm disrupts everything for several days. Wait for things to settle before drawing conclusions.

Being twelve months old. That is an age, not a signal. At twelve months the vast majority still need two naps, and dropping the morning one too soon produces a child in permanent debt.

Total sleep over 24 hOf which at night

Hover over the curve to read an age range.

Why rushing costs you

A child short on daytime sleep does not get longer nights. They get more fragmented ones: more wakings, earlier wakings, harder falling asleep — because overtiredness raises cortisol, which damages the end of the night.

That is the central paradox of the whole subject, and it is why the two most common mistakes mirror each other: dropping a nap too early “so they sleep better at night”, and putting them to bed later for the same reason. Both produce the opposite.

The method: alternate, and bring bedtime forward

During the transition you do not pick a rhythm. You keep two.

On two-nap days, keep the old timing exactly as it was.

On one-nap days, shift it gradually towards 12.30 – 1 p.m. Do not jump from 9.30 a.m. to 1 p.m.: move in fifteen- to thirty-minute steps over several days, with a slightly earlier lunch if needed.

And above all: bring bedtime forward. On days with only one nap, put them down thirty to forty-five minutes earlier. That is the most important rule of the whole transition and the one people forget. A child who has lost a nap needs to recover it somewhere, and the only place available is the start of the night.

Accept the irregularity. For four to six weeks, the day gets decided in the morning. That is uncomfortable for a parent who likes to plan, and it is temporary.

The rhythm you arrive at

Once the transition is done, it looks like this:

• waking around 6.30 – 7.30 a.m.;
• lunch around 11.45 a.m. – 12.15 p.m.;
• nap from 12.30 – 1 p.m. to 2.30 – 3.30 p.m.;
• bedtime around 7.30 – 8.30 p.m.

The single nap settles at one and a half to two and a half hours. If it goes past three hours and pushes bedtime back, wake them gently — one of the rare cases where waking a sleeping child is the right move.

The signs you went too fast

Night wakings coming back, early waking, impossible late afternoons around 5 p.m., evening settling that takes forty minutes.

If you see that, go back without hesitation. Return to two naps two or three days a week and try again in two to three weeks. There is nothing to gain from forcing a transition that is not taking — and nothing lost by postponing it.