12-Month Sleep Schedule: Transitioning to One Nap Without Losing Your Mind

Around the first birthday, many families start noticing certain signs: your baby fights one of their naps, falling asleep at bedtime keeps getting harder, or two naps just seem like too much. The 2-to-1 nap transition is on the horizon, and it's one of the trickiest schedule shifts of the first two years.

The tricky part isn't the transition itself. It's knowing when your baby is actually ready versus when they're just going through a phase, and then managing the adjustment period without everyone in the house going crazy in the process.

How Much Sleep Does a 12-Month-Old Need?

At 12 months, most babies need between 13 and 15 hours of total sleep in a 24-hour period, divided roughly as follows:

• Nighttime sleep: 11 to 12 hours
• Daytime sleep: 2 to 3.5 hours across 2 naps (or 1 nap if the transition has happened)

Wake windows at this age are typically 3 to 4 hours between sleep periods. That's a meaningful jump from earlier in the first year, and it's part of what makes the nap transition feel so abrupt when it happens.

When Does the 2-to-1 Nap Transition Actually Happen?

The average age for dropping to one nap is between 13 and 17 months, with most babies making the switch somewhere around 14 to 15 months. Some babies show signs earlier, around 12 months, but it's worth being cautious about transitioning too soon.

Dropping to one nap too early is one of the most common sleep mistakes at this age. A 12-month-old who isn't truly ready for one nap usually has a very hard time making it calmly to nap time, and then gets overtired by the afternoon and evening, which leads to crankiness, needing an earlier bedtime, night wakings, and very early mornings. If that sounds familiar, your baby might have made the switch before they were ready.

Signs Your Baby Is Ready to Drop to One Nap

Look for most of these signs consistently over at least 2 to 3 weeks before making the switch:

• Consistently refusing or fighting one of the two naps (not just occasionally)
• Able to handle a 4-hour wake window without becoming overtired
• Taking a long time to fall asleep at one or both naps
• Night sleep is still solid despite nap resistance
• The second nap is pushing bedtime past 8pm consistently

One or two bad nap days don't mean it's time. Look for a consistent pattern.

Sample Sleep Schedules

Use these as starting points, not strict prescriptions. Adjust based on your baby's natural wake time and temperament.

Schedule A: Still on 2 Naps (12 months, not yet ready to transition)

Time	Activity
7:00am	Wake up
10:00 – 11:15am	Nap 1 (~75 min)
2:30 – 3:30pm	Nap 2 (~60 min)
6:30pm	Start bedtime routine
7:00 – 7:30pm	Asleep for the night

Schedule B: Transitioning to 1 Nap (13-17 months)

During the transition, expect some rough days. The first few weeks on one nap, most babies need an earlier bedtime to compensate for the lost daytime sleep.

Time	Activity
7:00am	Wake up
12:00 – 2:30pm	Single nap (~2 to 2.5 hrs)
6:30pm	Start bedtime routine (earlier than usual during transition)
7:00pm	Asleep for the night

How to Manage the Transition Period

The 2-to-1 nap transition typically takes 4 to 8 weeks to fully stabilize. During that time, here's what helps:

• Move the single nap gradually later. If your baby was napping at 9:30am, move it to 10am, then 10:30am, working toward a midday nap around 12 to 12:30pm. Going straight to noon on day one often means a baby who can't make it that long.
• Use an earlier bedtime during the transition. For the first few weeks on one nap, an earlier bedtime of 6:30 to 7pm helps prevent overtiredness. As the single nap consolidates and gets longer, bedtime can gradually move back to its usual time.
• Offer a short bridge nap if needed. On days when your baby is struggling badly in the afternoon, a very short 20-minute car nap or stroller nap around 3 to 4pm can help them get through to bedtime without falling apart. Keep it short so it doesn't interfere with nighttime sleep.
• Be consistent. Switching back and forth between one and two naps makes the transition longer and harder. Once you commit to the transition, stick with it even on hard days.

Not sure if your baby is ready to transition?

I'm Paula, a certified infant sleep consultant at Baby and You Sleep and mom of three. Nap transitions are one of the most common topics families bring to me, and getting the timing right makes a huge difference. My free 15-minute Discovery Call is the best first step.

👉🏻 Send me a message and let's find a time that works for you

Frequently Asked Questions

Sources & Further Reading

The information in this article is based on current research in infant sleep science and child development. Here are some trusted sources if you'd like to read more:

• American Academy of Pediatrics (AAP): Toddler sleep guidelines. aap.org
• Mindell, J.A. & Owens, J.A.: A Clinical Guide to Pediatric Sleep: Diagnosis and Management of Sleep Problems.
• National Sleep Foundation: Toddler sleep needs and nap schedules. sleepfoundation.org