18 month old sleep schedule: wake windows, naps and a sample day

By 18 months nearly all toddlers are on one midday nap. Big feelings, new words and growing independence can make bedtime more of a negotiation.

By the Swaddle team · Reviewed October 25, 2026

Wake windows

4-6 h

Naps a day

1

Sleep in 24 h

11-14 h

Make your own 18 month old schedule

1 naps · wake windows about 4 h - 6 h · typical naps 1

  1. Wake up
  2. Nap until 12:55 pm (1 h 40 min)
  3. Bedtime

A starting point built from age-typical wake windows and nap lengths. Your baby’s own cues come first.

18 month old sample schedule

Here is one example day for a 18 month old who wakes at 7:00 am. It uses age-typical wake windows of about 4 h 40 min, a little shorter in the morning and a little longer before bed, and naps of about 1 h 40 min.

TimeWhatAwake before
7:00 am Wake up for the day -
11:15 am - 12:55 pm Nap (1 h 40 min) 4 h 15 min
6:30 pm Bedtime 5 h 35 min

That is about 1 h 40 min of day sleep. Wake earlier or later and everything shifts with it: use the schedule maker below to set your own wake-up time.

Wake windows are about 4.5 to 5.5 hours. A common day is wake at 7, nap at 12:30 pm for about 2 hours, and bed between 7 and 7:30 pm.

The 18 month regression

Many families see bedtime battles, early waking or nap refusal around 18 months. Common reasons are independence ("no!"), separation anxiety, molars and canines coming in, and a big leap in language. Read our guide to the 18 month sleep regression.

Bedtime routine and limits

Toddlers do best with a short, predictable routine: bath, pajamas, teeth, two books, song, lights out. Offering small choices (this pajama or that one) gives them some control without dragging bedtime out.

Crib or bed?

Most toddlers are safest in a crib for now. The American Academy of Pediatrics suggests moving to a bed once a child is about 35 inches (89 cm) tall or can climb out.

Wake windows at 18 months

A wake window is the time your baby is awake between one sleep and the next. At 18 months it is usually 4 h to 6 h. Most babies manage the shortest window in the morning and the longest before bedtime, as sleep pressure builds through the day. If your baby fights sleep and only drops off after a long time, the window may be too short. If they melt down before naps, it may be too long. See all ages on our wake windows by age chart.

How much sleep does a 18 month old need?

The American Academy of Sleep Medicine recommends 11 to 14 hours in 24 hours at this age, including naps. Some healthy babies sleep a bit more or less. Watch your baby rather than the number: a baby who is mostly content when awake, and feeding and growing well, is usually getting enough sleep.

Sleep regression around 18 months

Big feelings, "no!", molars and separation anxiety. Bedtime gets harder. Read the full guide: 18 month sleep regression.

Safe sleep: every sleep on the back, on a firm, flat surface, with no pillows, blankets, bumpers or toys. Share a room, not a bed, for at least the first 6 months.

Questions parents ask

How long should an 18 month old nap?

Usually 1.5 to 2.5 hours, once a day, starting around 12 to 1 pm.

How long can an 18 month old stay awake?

About 4.5 to 5.5 hours before the nap, and a similar stretch or a bit more before bedtime.

Is the 18 month sleep regression real?

It is not a medical diagnosis, but many families notice sleep gets harder around this age for a few weeks, often linked to teething, separation anxiety and independence.

Sources

  1. American Academy of Pediatrics: How to Keep Your Sleeping Baby Safe (healthychildren.org)
  2. Paruthi S, et al. Recommended amount of sleep for pediatric populations: AASM consensus statement. J Clin Sleep Med 2016
  3. Hirshkowitz M, et al. National Sleep Foundation’s sleep time duration recommendations. Sleep Health 2015
  4. Moon RY, et al. Sleep-related infant deaths: updated 2022 recommendations. Pediatrics 2022
  5. Cleveland Clinic: Wake windows by age
  6. Galland BC, et al. Normal sleep patterns in infants and children: a systematic review. Sleep Med Rev 2012

This page is general information from the sources above, written by the Swaddle team and last reviewed October 25, 2026. It is not medical advice and it is not a substitute for your pediatrician. Every baby is different. If something feels wrong, call your doctor. In an emergency, call 911 (US) or your local emergency number. How we write these pages.

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