Sleep tool · 12 month old

Wake windows at 12 months, and the one nap myth

The first birthday makes it feel like a nap should go, but most 12 month olds still need two.

Only used to work out her age. Nothing is saved or sent anywhere.

Wake windows
3½ to 4½ hours
Naps a day
2
Nap length
about 1 to 1.5 hours each
Sleep in 24 hours
11 to 14 hours

A 12 month old is often awake 3½ to 4½ hours between sleeps, still taking 2 naps of about 1 to 1.5 hours each. Total sleep usually sits around 11 to 14 hours, with about 10 to 12 hours of that at night.

Twelve months is when the two to one nap question gets asked in earnest, often because a birthday feels like a milestone. In practice the switch usually happens somewhere between 13 and 18 months, and most 12 month olds are not there yet. Wake windows are practitioner heuristics rather than AAP or NHS guidance, so treat the range as a frame, not a rule.

What changes at 12 months

  • The awake stretch lengthens again to 3½ to 4½ hours, so the day has noticeably more space in it than it did at 11 months.
  • Total sleep guidance shifts at the first birthday to 11 to 14 hours, with about 10 to 12 hours at night, so slightly less overall sleep is normal now.
  • Naps remain at 2 for most toddlers, though the morning one often starts feeling less essential than it did.
  • Walking, climbing and a bigger vocabulary all arrive around now, and each can make the wind down take longer.

What tired looks like right now

  • Tripping and falling more than usual while walking or cruising, which often turns up before any yawn.
  • Suddenly wanting to be carried after happily walking around on their own.
  • Losing interest in food they normally like at the meal before a nap.
  • Rubbing their face into your shoulder or the sofa rather than rubbing their eyes.

When it goes sideways

Everyone says to drop a nap at one year, but mine still seems to need two

The two to one transition is widely assumed to happen on the first birthday, and it usually does not. Most toddlers make the switch somewhere between 13 and 18 months, and a 12 month old who still takes 2 naps of about 1 to 1.5 hours each is doing exactly what most do. Readiness usually shows as consistent refusal over two or more weeks, not a single hard week.

Daycare has moved them to one nap but we do two at home

Split routines are common at 12 months, since many settings run a single midday nap for the whole room. Most families keep 2 naps at home and treat daycare days as short sleep days, with an earlier bedtime to make up the difference. A toddler on one nap at nursery is often ready for bed noticeably sooner that evening. Consistency matters less than protecting total sleep.

Night sleep got worse right around the first birthday

A wobble around 12 months is common and usually short. Walking, new words, a change in milk feeds and stronger separation awareness often land in the same few weeks. The wake windows also lengthen to 3½ to 4½ hours, so a schedule that fit last month may now leave them undertired at bedtime. Adjusting the day before changing anything at night tends to work better.

Questions parents ask at this age

Why do people say to drop a nap at 12 months?
The first birthday feels like a natural milestone, and older schedules often listed one nap from twelve months. In practice most toddlers move to one nap somewhere between 13 and 18 months. A 12 month old still on 2 naps of about 1 to 1.5 hours each is following the usual pattern, not lagging behind.
How long should a 12 month old be awake before bed?
The stretch before bed is usually the longest of the day, sitting near the top of the 3½ to 4½ hour range. If the afternoon nap ends late, holding the full window can push bedtime past the point where settling is easy. Many families shorten that last window a little rather than defending a fixed bedtime.
How many hours of sleep does a 1 year old need?
Around 11 to 14 hours across 24 hours is typical from the first birthday, which is less than the 12 to 16 hours quoted for younger babies. About 10 to 12 hours of that usually happens at night, with the rest coming from 2 naps of about 1 to 1.5 hours each.
Is it normal for a 12 month old to still take two naps?
Yes, and it is what most 12 month olds do. Two naps of about 1 to 1.5 hours each is the usual pattern at this age. Toddlers who keep both naps often sleep better at night than those pushed to one early, because the last wake window stays inside a manageable length.
What time should a 1 year old wake up in the morning?
There is no correct time, though many families find the day runs more smoothly when the morning start is consistent. What matters more is what follows: the first wake window of 3½ to 4½ hours sets the whole day. A very early start usually means the first nap needs to come earlier too.
Why has my 12 month old started waking at night again?
Night waking often returns around the first birthday. Walking, talking, changes to milk feeds and separation awareness tend to cluster here. The wake windows lengthening to 3½ to 4½ hours can also leave a toddler undertired on the old schedule. If waking comes with fever, pain or a change in appetite, check with your doctor.
Should I cut the morning nap short at 12 months?
Capping the morning nap is a common way to keep 2 naps working at 12 months. If the first nap runs long, the second often shrinks and bedtime drifts later. Trimming the morning nap so both stay near about 1 to 1.5 hours each usually keeps the afternoon one intact for longer.
Is there a 12 month sleep regression?
Sleep regression is a parenting term rather than a medical diagnosis, and no official body publishes a 12 month one. What many families notice is real, though: a cluster of new skills and a longer wake window arriving together. Most of these patches settle within a few weeks once the day is adjusted to fit.
How do I know if my 12 month old is ready for one nap?
Common signs include refusing one nap consistently for two weeks or more, taking a very long time to fall asleep for the second, or the second nap pushing bedtime unworkably late. One or two odd days rarely counts. Since the change usually comes between 13 and 18 months, waiting a few more weeks is often the easier route.
Does a 12 month old still need a night feed?
Feeding decisions belong with your pediatrician or health visitor, since they depend on growth, health and how the day is going. What sleep timing can do is separate hunger from habit: a toddler waking at the same minute each night, or only settling with a bottle, may be responding to routine. Ask your doctor before changing feeds.
12 month old is The Wobbler
Sleep is only part of what shifts at 12–13 months. See everything happening in The Wobbler.

Wake windows at every age

Open the full wake window calculator

Willo App ★★★★★
Walk every phase of your baby's first six years with someone who finally gets it.
Scan to open the Willo App in the App Store
Get it