1 Year Old Sleep: Schedule, Norms and the 12 Month Regression

Happy first birthday — and welcome to the 12 month sleep regression. First steps, first words, and a baby who suddenly refuses to sleep. Here's what's happening and what to do about it.

Sleep Norms at 12 Months

11–14 h

Total daily

1–2.5 h

Daytime nap(s)

10–12 h

Nighttime

The 12 Month Sleep Regression

Three things happen simultaneously at 12 months, which is why this regression can feel particularly intense:

Walking. Learning to walk is the biggest neurological project of the first year. The brain consolidates motor patterns during sleep.
First words. Vocabulary development accelerates. Language processing requires enormous brain resources — even during sleep.
2-to-1 nap transition. Many babies start showing signs of the 2-to-1 nap shift right around this time, creating schedule instability.

Don't rush the 1-nap transition at 12 months. Average transition age is 14–18 months. Babies who drop to 1 nap at 12 months are usually chronically overtired within weeks.

Sample 2-Nap Schedule at 12 Months

Time	Activity
7:00 AM	Wake, breakfast
9:30–10:00 AM	Nap 1 (60–75 min)
11:00 AM	Lunch, play, outdoor time
2:30–3:00 PM	Nap 2 (60–75 min)
4:00 PM	Snack, play, bath
6:30–7:00 PM	Dinner + bedtime routine
7:30 PM	Night sleep

Signs Your 1-Year-Old Is Ready for 1 Nap

Ready ✅	Not ready ❌
One nap consistently won't happen for 2+ weeks	Nap refusal only during regression/illness
Gets through to evening without overtiredness	Falls apart by 5 PM without a second nap
Night sleep stays good without second nap	Night worsens when second nap is skipped
Age 14 months+	Under 13 months

FAQ

My 12 month old suddenly woke up 5 times last night — is this the regression?

Likely yes. The 12 month regression typically brings increased night waking, early rising, and nap resistance. It usually lasts 2–4 weeks. Maintain your schedule and don't introduce new sleep associations to cope — they'll outlast the regression.

Do I need to night wean at 12 months?

Physiologically, night feeds aren't needed at this age. But there's no rush if both parent and child are okay with it. If night feeds are causing sleep issues (3+ wakings), gradual weaning usually helps.

Navigate the 12 month transition with data

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