13-Month-Old Sleep Schedule: Naps, Bedtime, and Transitions

Why Does Sleep Feel So Unsettled at 13 Months?

If your 13-month-old's sleep suddenly feels like a moving target, you're not doing anything wrong — and you're definitely not alone. Thirteen months is one of those ages where the old routine stops fitting but the new one hasn't quite arrived yet. Your baby might fight the second nap some days and need it desperately on others, and that inconsistency is genuinely exhausting to navigate.

The core issue at this age is almost always the nap transition. Your 13-month-old is right in the middle of the window where babies start moving from two naps to one, and that process is rarely neat or linear. Understanding what's developmentally normal makes it far less stressful.

Quick answer: Most 13-month-olds need around 12–14 hours of total sleep per day. Many are still on two naps at this age, though some are ready to begin transitioning to one. The average age for completing the 2-to-1 nap transition is around 15 months, so there's no rush.

How Much Sleep Does a 13-Month-Old Need?

The American Academy of Pediatrics recommends 11 to 14 hours of total sleep per day for children aged 1 to 2 years, including naps. At thirteen months, most toddlers fall somewhere around 12 to 14 hours total — typically 10 to 12 hours overnight plus one or two daytime naps totalling 1.5 to 3 hours.

If you're coming from the 12-month sleep schedule, you'll notice that total sleep needs haven't changed dramatically. What has changed is how that sleep gets distributed. Wake windows are lengthening, your toddler is more physically active, and their ability to consolidate sleep is maturing — so the same total hours now look different on the clock.

What matters most is whether your toddler seems genuinely rested: generally in good spirits during wake time, settling for naps without prolonged fussing, and waking on their own in the morning.

Is 13 Months Too Early for One Nap?

This is the question parents ask more than any other at this stage, and the honest answer is: it depends on your child, but probably not yet.

Research published in Sleep Medicine Reviews by Dr. Jodi Mindell and colleagues found that the transition from two naps to one typically happens between 12 and 18 months, with the average around 14 to 15 months. At 13 months, your toddler is in the early part of that window. Some babies genuinely need one nap by this point — but many more are still better served by two.

The biggest risk of moving to one nap too early is overtiredness. When a toddler who still needs two naps is pushed onto a one-nap schedule, the afternoon wake window becomes far too long for their developing nervous system. Overtiredness doesn't usually show up as extra sleepiness — paradoxically, it produces more night waking, earlier mornings, and a wound-up toddler who is difficult to settle at bedtime.

Signs your 13-month-old may genuinely be ready for one nap:

• •Consistently refusing the second nap for two weeks or more (not just occasional bad days)
• •Taking 30+ minutes to fall asleep for the second nap despite clear tiredness
• •Sleeping well overnight and waking happy — suggesting total sleep is sufficient on one nap

If the pattern is persistent for several weeks, it may be worth experimenting with a one-nap trial.

Sample 13-Month-Old Sleep Schedules

Because 13 months straddles the two-nap and one-nap phases, it helps to see both schedules. Use whichever matches your toddler's current pattern.

Two-Nap Schedule (Still Most Common at 13 Months)

On a two-nap schedule, wake windows typically run around 3 to 3.5 hours between sleep periods. The first window of the day is usually the shortest, and the one between the second nap and bedtime is the longest.

One-Nap Schedule (For Early Transitioners)

If you're trialling one nap, expect bedtime to move earlier — sometimes as early as 6:00 pm — to bridge that long afternoon gap. This is a temporary adjustment that gradually shifts back over several weeks.

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Wake Windows at 13 Months

Wake windows — the stretches of awake time your toddler can comfortably handle between sleeps — are shifting noticeably at this age:

• •Two-nap schedule: roughly 3 to 3.5 hours between each sleep period
• •One-nap schedule: around 4 to 5 hours before the nap, then 5 to 6 hours after

These are starting points, not rigid rules. Many 13-month-olds handle a longer afternoon stretch better than a longer morning one. Watch for tired cues — eye-rubbing, zoning out, increased clumsiness — and treat those as just as reliable as the clock.

Managing the Nap Transition Smoothly

If your 13-month-old is showing sustained signs of readiness, the best approach is gradual. Rather than switching cold turkey, try pushing the morning nap later by 15 to 20 minutes every few days. Over a week or two, this naturally merges the two naps into a single midday sleep.

During the transition, a few things help enormously. Keep nap length in mind — a single nap under an hour probably means they're not quite ready, and you may need to go back to two naps temporarily. Protect bedtime fiercely, because an overtired toddler heading into a long night is a recipe for multiple wakings. And give it time: most toddlers take four to six weeks to fully adjust, with a few rough days where a short catnap is needed to bridge the afternoon.

Common Mistakes at 13 Months

The most frequent mistake is dropping the second nap because of a rough week rather than a sustained pattern. A few days of nap resistance could be teething, a developmental leap, or a toddler who doesn't want to stop playing. Judge the transition by weeks, not days.

Another common trap is keeping bedtime too late during the transition. If your toddler's only nap ended at 2:00 pm, a 7:30 or 8:00 pm bedtime is too much awake time. Earlier bedtime isn't a failure — it's developmentally appropriate.

When to Talk to Your Paediatrician

Most sleep changes at 13 months are normal developmental shifts. It's worth raising concerns if your toddler is consistently sleeping fewer than 10 hours total per day, shows signs of sleep-disordered breathing such as snoring or gasping, or if sleep difficulties are significantly affecting your family after several weeks of a consistent approach.

Thirteen months is genuinely one of the more unpredictable sleep phases — but it's temporary. Whether your toddler is holding onto two naps or making the leap to one, staying patient and following their cues will get you through. The 18-month schedule is waiting on the other side, and by then things tend to settle into a much more predictable rhythm.

This article is based on published research from the American Academy of Pediatrics (AAP), the National Health Service (NHS), and peer-reviewed pediatric sleep studies. It is not medical advice — always consult your pediatrician for individual guidance.