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12 Month Old Sleep Schedule

At 12 months, babies typically need 12–14h of total sleep, including 10–11h at night and 1.5–2.5h of daytime naps (1–2 naps). 2→1 nap transition common; total 11–14h (AASM).

Updated August 6, 2026

Sleep Guidelines

Typical sleep ranges for 12 months old babies

AgeNight SleepNap DurationTotal SleepNapsTransition
12 months10–11h1.5–2.5h12–14h1–22→1 nap transition common; total 11–14h (AASM)

Target Wake Windows

Planning targets for this age range

Age RangeScheduleBefore Nap 1Before Nap 2Before Bedtime
11-14 months2 naps3h3-3.5h3.5-4h
11-14 months · 2 napsWake windows extend to 3-4 hours. Bedtime window is usually the longest. The 2-to-1 nap transition is common here. If baby resists the second nap for 1-2 weeks, they may be ready to drop to 1 nap.
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Sample schedules (12 months)

Compare both nap schedules during this transition

Sample day assuming awake-up

During a nap transition, either schedule may fit your baby. Compare both below and follow sleepy cues.

2 naps schedule

11-14 months

  1. Wake up

  2. 3h awake

  3. Nap One: 1h 15m

  4. 3h 15m awake

  5. Nap Two: 1h 30m

  6. 3h 45m awake

  7. Bedtime

1 nap schedule

14-24 months

  1. Wake up

  2. 5h 30m awake

  3. Nap One: 2h

  4. 4h 30m awake

  5. Bedtime

Wake times use each range's midpoint, rounded to 15 minutes. Nap lengths are planning averages for 12 months. Adjust to your baby's cues.

Transitions to Watch For

Sleep pattern shifts common around this age

~12–15 months

2→1 Nap

The 2-to-1 nap transition is common around 12–15 months. Most toddlers settle into a single afternoon nap. Source: Sleep Foundation.

Sleep Disruption Troubleshooting

Common sleep challenges at this age

Teething Pain

When: Can begin around 4–6 months and continue through 24 months as teeth erupt.

Signs: Increased drooling, gum rubbing, irritability, refusal to feed, disrupted night sleep.

What helps: Offer a clean, chilled teething ring. Gently massage gums with a clean finger. Maintain consistent bedtime routines. If pain is severe, consult your pediatrician about appropriate pain relief.

Sleep Regressions

Common windows: ~4 months, 6 months, 8 months, 12 months, and 18 months.

What happens: Temporary disruptions as babies hit developmental milestones or sleep cycles reorganize. Previously good sleepers may wake frequently.

Duration: Usually 2–6 weeks. Maintain consistent routines and avoid creating new sleep associations (like feeding to sleep) during this phase. This is temporary. Sleep typically returns.

Developmental Milestones

Common milestones: Rolling (~4–6m), sitting (~6m), crawling (~7–9m), pulling to stand (~9–11m), walking (~12–15m).

Impact: Babies may practice new skills at night, leading to disrupted sleep. Some may seem to "forget" how to sleep for 1–2 weeks.

What helps: Provide plenty of practice time during the day. Maintain routines. If baby gets stuck in a new position, gently help them resettle without fully picking them up.

Medical Disclaimer: This tool provides general reference information compiled from pediatric sleep guidelines (AAP, Sleep Foundation, NHS). Every baby develops differently. These are typical ranges, not prescriptive targets. Always consult your pediatrician for questions about your baby's feeding, growth, health, or sleep concerns. Follow safe sleep guidelines: place babies on their back on a firm, flat surface with no loose bedding.

Sources