2-to-1 nap transition: when and how to drop to one nap

The move from two naps to one is one of the bigger schedule shifts of the toddler year, and it is rarely clean. For a few weeks a baby is often a little under-napped on one nap but no longer needs two. Expect a wobbly stretch, lean on an early bedtime, and let the new rhythm settle rather than forcing it on a fixed date.

When does it happen?

Usually between 13 and 18 months, with a wide normal range. Some babies hold two naps until 18 months; a few shift earlier. The age is a window, not a date - readiness signs matter far more than the calendar.

Signs your baby is ready for one nap

• Consistently refusing or fighting one of the two naps for 10-14 days.
• Taking a long time to fall asleep at naps or at bedtime because there is too little sleep pressure.
• Early-morning wakings or split nights appearing after a long time of good sleep.
• The second nap pushing bedtime too late, or being skipped without a meltdown.

One bad week is not a transition. Look for a clear pattern over about two weeks before you commit.

How to make the transition

• Shift the morning nap later by 15-30 minutes every few days, toward roughly 11:30 a.m. to 12:30 p.m.
• Aim for one midday nap of about 2 to 3 hours once it settles.
• Use an early bedtime (sometimes 6:00-6:30 p.m.) on one-nap days to cover the gap until the nap lengthens.
• On a rough day, a short car or stroller nap can bridge to bedtime - do not fight overtiredness.
• Keep it consistent for 2-3 weeks before judging whether it is working.

A sample one-nap day

Wake around 7:00 a.m., nap from about 12:00 to 2:30 p.m., bedtime around 7:00 to 7:30 p.m. On a short-nap day, move bedtime earlier to 6:30. These are starting points - shift the whole day to match your baby wake time.

When it is not time yet

If your baby still takes both naps reliably and bedtime is fine, do not rush. Dropping a nap too early just creates an overtired toddler and worse nights. If you push to one nap and see two weeks of early wakings and meltdowns, go back to two naps for a few weeks and try again later. This is educational guidance, not medical advice.

FAQ

At what age do babies drop to one nap?

Most between 13 and 18 months, with a wide normal range. Follow readiness signs over about two weeks rather than the exact age.

How long does the 2-to-1 transition take?

Usually 2-4 weeks for the single nap to lengthen and bedtime to settle. Expect some short naps and early bedtimes in the meantime.

What time should the one nap be?

Once settled, roughly midday - often starting between 11:30 a.m. and 12:30 p.m. and lasting 2 to 3 hours. Adjust to your baby morning wake time.

My baby fights one nap but melts down on one - what now?

That in-between is normal. Hold the single nap, use an early bedtime, and bridge rough days with a short backup nap. It usually smooths out within a couple of weeks.

Related guides

Keep reading: Dropping a nap: how to spot the transition and ride it out without breaking sleep, 9 Month Sleep Schedule: 2 Naps, Wake Windows, Sample Day. Calculate it for your baby with the Nap Schedule Generator.