A 12-month-old needs about 13 to 15 hours of total sleep in a 24-hour period, including nighttime sleep and naps. Of that, roughly 2.5 to 3 hours should come from daytime naps, with the rest happening overnight. This is also an age of major transitions, so if your child’s sleep suddenly feels chaotic, that’s common and usually temporary.
Nighttime and Daytime Sleep Breakdown
Most 12-month-olds sleep 10 to 12 hours at night and fill the remaining hours with one or two naps during the day. The Canadian Paediatric Society recommends 12 to 16 hours of total sleep for infants aged 4 to 12 months, and your child will likely land somewhere in the 13-to-15-hour range as they approach their first birthday.
For naps, the typical pattern at 12 months is still two naps a day: a morning nap about 3 hours after waking (lasting 2 to 3 hours) and an afternoon nap about 3.5 hours later (lasting around an hour). Together, those naps add up to about 2.5 to 3 hours of daytime sleep. Some 12-month-olds are already starting to drop to one nap, but most aren’t truly ready yet.
Wake Windows at 12 Months
The time your child can comfortably stay awake between sleep periods, often called a “wake window,” is about 3 to 4 hours at this age. That window includes feeding, play, and any transition time before the next nap or bedtime. If your child consistently gets fussy or rubs their eyes well before the 3-hour mark, they may need slightly shorter windows. If they fight sleep at the end of a 3-hour stretch, they may be ready for closer to 4 hours of awake time.
Paying attention to these windows matters more than sticking to rigid clock times. A child who wakes at 6 a.m. will need a different schedule than one who wakes at 7:30, even though both are perfectly healthy 12-month-olds.
When to Drop to One Nap
Around the first birthday, many parents wonder whether it’s time to move from two naps to one. For most children, this transition happens closer to 14 or 15 months, but every child is different. The key is to watch behavior over at least one to two weeks rather than reacting to a few rough days.
Signs your child may be ready for one nap:
- Consistent nap refusal. They regularly skip the second nap, usually just lying in the crib without falling asleep.
- Short naps. One or both naps regularly shrink to less than 45 minutes.
- Longer time to fall asleep. It takes noticeably longer for them to settle at nap time or bedtime.
The important test is mood. If your child drops a nap and still seems well-rested, content, and sleeps well at night over several days, they’re probably ready. If they become noticeably cranky, overtired, or start waking more at night, they likely still need two naps and are just going through a temporary disruption.
The 12-Month Sleep Regression
Just when you think you’ve figured out a solid sleep routine, the 12-month sleep regression can throw everything off. This is a temporary period where a child who previously slept well starts waking at night, resisting naps, or taking much longer to fall asleep.
Several things converge around the first birthday to cause this. Your child is likely learning to stand, cruise along furniture, or take first steps, and that physical excitement can make it hard to wind down. Separation anxiety peaks around this age, so being put down alone in a crib feels more distressing than it did a month ago. Teething pain from molars can also play a role. In most cases, the disruption lasts no longer than a few weeks.
The most helpful thing you can do during a regression is stay consistent with your existing bedtime routine. Introducing new sleep associations (rocking to sleep, co-sleeping, extra feedings) can solve the short-term problem but create a longer-term habit that’s harder to undo once the regression passes.
Night Feedings at 12 Months
By 12 months, most healthy children are getting enough nutrition from daytime meals and no longer need to eat overnight. This is the age when night weaning becomes a reasonable option for breastfed children, and many formula-fed babies have already dropped night feeds by this point.
That said, “no longer nutritionally necessary” and “ready to give up easily” are two different things. If your child still wakes to feed once at night and you’re comfortable with it, there’s no medical urgency to stop. But if night waking is frequent and tied to feeding, knowing that the calories aren’t needed can help you feel confident about gradually reducing those feeds.
How the Internal Clock Matures
Your child’s internal body clock is still developing at 12 months. Melatonin, the hormone that signals sleepiness, starts being produced in meaningful amounts after the first 3 months of life. By a year old, most children have a functional sleep-wake rhythm, but the timing of their melatonin release still varies. Children whose melatonin rises later in the evening tend to have later bedtimes and later wake times, which is a biological trait rather than a behavioral problem.
You can support your child’s internal clock by keeping a consistent schedule: regular wake times, meals, and exposure to bright light during the day, followed by dim lighting in the hour before bed. These cues help reinforce the natural rhythm that’s still solidifying.
Sleep Environment at 12 Months
Even though your child is now a year old, the safest sleep setup is still a firm, flat surface with nothing but a fitted sheet. The U.S. Consumer Product Safety Commission recommends keeping pillows, blankets, stuffed animals, and bumpers out of the crib. The “bare is best” guideline exists because soft items in the sleep space remain a suffocation risk for young children who may not reliably reposition themselves.
If you’re worried about warmth, a wearable sleep sack is a safe alternative to a loose blanket. Many parents make the switch to a toddler pillow and blanket sometime after 18 months, but there’s no rush. The crib itself remains the right sleep space for most children until they’re at least 2 years old or start climbing out.
What a Realistic Schedule Looks Like
Every family’s schedule will differ, but here’s a rough framework for a 12-month-old still on two naps:
- 6:30 to 7:00 a.m. Wake up
- 9:30 to 10:00 a.m. First nap (1.5 to 2 hours)
- 2:00 to 2:30 p.m. Second nap (45 minutes to 1 hour)
- 7:00 to 7:30 p.m. Bedtime
The total awake time before bed should be the longest stretch of the day, typically around 3.5 to 4 hours. If the second nap runs too late, it can push bedtime later and cut into nighttime sleep. Capping the afternoon nap by 3:30 p.m. usually preserves a reasonable bedtime.
If your child is transitioning to one nap, that single nap typically shifts to late morning or midday and stretches to 2 to 3 hours, with bedtime moving slightly earlier to prevent overtiredness.