Toddlers between 12 and 24 months need 11 to 14 hours of total sleep per day, including naps. Once they hit preschool age (3 to 5), that drops slightly to 10 to 13 hours. These totals combine nighttime sleep and daytime naps, so a toddler sleeping 11 hours at night and napping for 2 hours is right in the sweet spot.
Sleep Needs by Age
A 1-year-old and a 3-year-old have noticeably different sleep patterns, even though both fall under the broad “toddler” label. At 12 months, most children still take two naps a day and sleep 10 to 12 hours overnight. By 18 to 24 months, most have consolidated down to a single nap, typically in the early afternoon. That one remaining nap usually lasts somewhere around 1 to 2 hours.
By age 3, some children start dropping their nap altogether, though many still benefit from quiet rest in the afternoon. If your child is 2 or 3 and fighting the nap but sleeping well at night and waking up in a good mood, they may be naturally outgrowing the need for daytime sleep. On the other hand, if skipping the nap leads to meltdowns by 4 p.m., they’re not ready to give it up yet.
How Naps Fit Into the Total
Naps aren’t a bonus on top of nighttime sleep. They’re part of the 11-to-14-hour total your toddler’s brain and body need. The timing and length of naps matter, too. Children who take an early afternoon nap lasting under 60 minutes tend to sleep better at night than those who nap later in the day or for longer stretches. A nap that runs too long or too late can push bedtime later, creating a cycle of overtiredness.
If your toddler is between 18 and 24 months and still on two naps, the transition to one nap often happens gradually. You might notice the morning nap getting shorter or your child resisting it entirely. Most families find that shifting to a single post-lunch nap, somewhere around 12:30 or 1:00 p.m., works well during this transition.
Why Toddlers Sleep So Much
Toddlers produce more of the sleep hormone melatonin than adults do. Melatonin production peaks before puberty, which is one reason young children fall asleep relatively easily in the right conditions and sustain long stretches of deep sleep. This high melatonin output supports the intense brain development happening during the toddler years, when language, motor skills, and memory are all being wired at a rapid pace.
Their circadian rhythms are also still maturing. A toddler’s internal clock naturally favors an early bedtime (typically between 7:00 and 8:00 p.m.) and an early wake time. Trying to keep a toddler up later in hopes they’ll sleep in usually backfires, because their biology is pushing them toward that early schedule regardless of when they go to bed.
Sleep Regressions to Expect
Even toddlers who have been great sleepers can hit rough patches. Sleep regressions are common at 18 months and again around age 2, and they’re driven by the developmental leaps happening at those ages. At 18 months, separation anxiety tends to peak. Your toddler may suddenly need you in the room to fall asleep or start waking and calling for you at night.
The 2-year regression has its own mix of triggers. Language and physical abilities are expanding fast, and with that comes a surge in independence. Your child may insist on doing every part of the bedtime routine themselves, climb out of the crib repeatedly, or simply refuse to lie down. New fears also emerge around this age: fear of the dark, fear of imagined things in the room. These are developmentally normal and tend to resolve within a few weeks. Two-year molars can add pain on top of everything else, making sleep even harder to come by. Some toddlers around this age also begin experimenting with dropping their nap, which can temporarily destabilize nighttime sleep.
Bedtime Routines Make a Measurable Difference
A consistent bedtime routine is one of the most effective tools for improving toddler sleep, and the evidence behind it is unusually strong. In a study of 405 mothers and their children aged 7 to 36 months, a consistent routine significantly reduced the time it took children to fall asleep, increased their longest uninterrupted sleep stretch, and decreased the number of times they woke during the night. Mothers in the study also reported better mood themselves.
A larger cross-cultural study of over 10,000 families across 14 countries found a dose-dependent relationship: the more nights per week a bedtime routine was followed, the better the child’s sleep outcomes. That included earlier bedtimes, faster sleep onset, less wakefulness during the night, and more total sleep. In other words, doing a routine five nights a week produces better results than doing it three nights a week, and seven nights is better still.
The routine itself doesn’t need to be elaborate. A bath, a book, a song, and lights out is enough. What matters is consistency: doing the same steps in the same order signals to your toddler’s brain that sleep is coming, which helps their body start winding down before they’re even in bed.
Signs Your Toddler Isn’t Sleeping Enough
Overtired toddlers don’t always look sleepy. In fact, the most common sign of insufficient sleep in young children is hyperactivity and impulsiveness, not drowsiness. A toddler who seems wired and unable to settle, especially in the late afternoon or evening, is often running on fumes rather than genuinely energized.
Other signs to watch for include:
- Mood swings and meltdowns that seem out of proportion to what triggered them
- Difficulty paying attention during play, meals, or simple tasks
- Falling asleep on short car rides, which suggests they’re catching up on missed sleep
- Clinginess and decreased social skills, including trouble interacting with other children
- Trouble waking up in the morning or seeming groggy and low-energy for the first hour of the day
If you’re seeing several of these patterns, the fix is often straightforward: an earlier bedtime, a more consistent routine, or reinstating a nap that was dropped too soon. Even shifting bedtime 30 minutes earlier for a week can reveal whether sleep debt is behind the behavior changes.